14 best tankless water heaters

Product description

This Smart Technology electric tankless water heater is configured as a "whole home" model for climates where incoming water temperature is 67°F and above. This model is well suited for heating up to 2-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 67°F and an output setting of 105°F. Digital Temperature Control allows you to set your temperature in increments of 1 Degree. This model can also be used in colder climates as a Point of Use for a sink or other low flow application. All tankless water heaters are sized based on flow rate and temperature rise, and there is a direct relationship between the two. So if used in a cold area requiring a high temperature rise, it will be more limited in the amount of fixtures (gallons per minute) it can heat at one time compared to a warmer climate. When sized properly this water heater will provide endless hot water and only consume the energy needed, giving the user complete control. Prior to purchase and installation please verify this model is the right size for the expected demand and electrical requirements. The ECO 11 requires a minimum 125 amp electrical panel for installation with 60 amp double pole breaker connected to set of #6 awg wire. Plumbing connections are 1/2" compression fitting with the option of 1/2" NPT adapter included. For additional assistance please feel free to contact our support center at 877-474-6473.



NOTE : 11Kw at 220 is equal to 13kw at 240. .Activation Flow : 0.3 GPM

From the Manufacturer

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature is 67 Degree F and above. This model is well suited for heating up to 2-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 67 Degree F. Digital Temperature Control allows you to set your temperature in increments of 1 Degree. This model can also be used in colder climates as a Point of Use for a sink or other low flow application. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

• Lifetime warranty
• Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
• Never run out of hot water with an ECOSMART tankless water heater
• Patented Self Modulating Technology and design
• ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98

User questions & answers

Question:	Ours has only been in service for less than a year - will not adjust temperature to anything above 85 Deg. F. What do you think is the problem ? kds
Answer:	My only guess is that the rheostat (variable resistor) that the temperature adjustment knob is attached to may be faulty. If that isn't it then I don't know. Sorry.
Question:	The warrenty says that this unit must be installed by a licensed electrician and plumber, for them to honor the "life time warrenty." why
Answer:	Hello Bob, The reason is the same as why an innumerable number of gadgets around the world have that little "warranty void if removed" label. Because getting inside of one requires a certain level of training and expertise. Same with this unit. GadgetsGo is an authorized Ecosmart dealer. Kind regards,HenryGadgetsGo
Question:	My house is wired 110V. What additional items do I need to purchase for the conversion
Answer:	Just to expand slightly on prior answers, normally a residential service feed is 240 volts between the two incoming hot legs. There is also a neutral leg, which (hopefully) has zero potential with reference to ground. The voltage between either one of the hot legs and the neutral leg is 120 volts. The 120 volt circuits in your house are connected to one or the other of the two hot legs, and only one. An attempt is made to assign circuits to the two hot legs in a way that will roughly balance the load between them. The other side of a 120 volt circuit is connected to the neutral leg. There is additionally a safety ground run with the circuit, which also ties into the panel. Certain devices require more power (work product of current and voltage) than is practical to deliver using a 120 volt circuit. Common examples are your clothes dryer, and your electric stove. These devices are powered by both hot legs, with a difference in potential of 240 volts. This water heater is also such a device.STRONG BUT FRIENDLY WARNING: If you did not already know this, please don't make wiring this water heater your learning opportunity with electricity. Hire someone who knows how to do it right. Cutting corners, especially with higher currents and voltages, can lead to equipment damage, fire, and electrocution. Electricity is not magic, and you can certainly learn how to do many common wiring tasks safely on your own, but today is not the day to begin that journey. You need properly sized components, properly installed, and connected to an adequate service. Also, if you really, really foul up, you could conceivably wind up making that morning shower more energizing than you ever imagined, if you get what I mean. So newly aspiring electricians should go fix their grandmother's favorite table lamp instead. Once they have that working they can use it to to start reading books about electricity, residential wiring, and eventually, books about this stuff: http://amazon.com/s/ref=nb_sb_ss_c_0_8?url=search-alias%3Dstripbooks&field-keywords=nec+code&sprefix=nec+code%2Caps%2C164 . Of course, you still have to know not to nick conductors when you strip them, and other trade craft like that ; ) . Like almost everything in life that is fun, electricity will hurt you. Sort of like all those people you dated for a while, and then wished later you had never met.
Question:	what amp breaker is required
Answer:	The National Electrical Code requires conductors and overcurrent protection to be sized at 100% of the manufacturer's branch circuit recommendation for tankless electric water heaters. A 60 amp breaker is the same price as a 40 or 50, it is the wire that costs more. #6 AWG wire is required for a 60 amp circuit. If you undersize the wire it could overheat and catch fire. Protect your family and follow the manufacturer's sizing for this, or any other, electrical device. Your family's lives are worth the extra money. 

Product features

3 Smart Steps for Endless Hot Water

Step 1: Determining your average inlet water temperature is important, this allows you to determine how well your unit will perform in your desired location. A lower inlet water temperature will require a higher kilowatt product.

Step 2: Next you will determine how many applications your unit can run simultaneously at your chosen location inlet water temperature. Tankless electric water heaters are sized for maximum simultaneous use, not maximum fixtures in your home.

Step 3: Determining specifications and electrical infrastructure is important because without the correct infrastructure your unit may not fit into your breaker panel.

Product description

This Smart Technology electric tankless water heater is configured as a "whole home" model for climates where incoming water temperature is 62°F and above. The ECO 18 is capable of heating over 2.5 gallons per minute, which is the equivalent of one water saver shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 62°F, and an output setting of 105° F. Two showers emitting no more than 1.5 gpm each can be run simultaneously when incoming water temperature is above 70° F. Digital temperature control allows you to set your temperature in increments of 1°. All tankless water heaters are sized based on flow rate and temperature rise, and there is a direct relationship between the two. So if used in a cold area requiring a high temperature rise, it will be more limited in the amount of fixtures (gallons per minute) it can heat at one time compared to a warmer climate. However, when sized properly it will provide endless hot water and only consume the energy needed, giving the user complete control. Prior to purchase and installation please verify this model is the right size for the expected demand and electrical requirements. The ECO 18 requires a minimum 150 amp electrical panel for installation with 40 amp double pole breakers connected to sets of #8 awg wire. Plumbing connections are 3/4" NPT. For additional assistance please feel free to contact our support center at 877-474-6473.

From the Manufacturer

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature is 62 Degree F and above. The ECO 18 is capable of heating over 2.5-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 62 Degree F. Two showers can be run simultaneously when incoming water temperature is above 70 Degree F in warmer climates such as South Texas, South Florida, New Mexico, Arizona and South California. These models come with a digital temperature control that allows you to set your temperature in increments of 1 Degree. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

• The product is highly durable
• The product is easy to use
• Manufactured in China
• Copper and stainless components
• Lifetime warranty for residential use
• Save up to 60% on your water heating costs with the most advanced, self modulating technology available
• Never run out of hot water with an ECOSMART tankless water heater.

User questions & answers

Question:	How do know which size to buy? We will supply two bathrooms, dish washer, clothes washer. What size should I choose
Answer:	I noted someone below stating they got the largest one and they can only run one water source at a time. My guess is they installed it wrong by not getting the electric hooked up right, or maybe the unit was just defective, or they live in Alaska. I went under size with an Eco 27 a few years ago because that’s all my electric panel could handle. We have zero issues in the summer. During winter months we can only run one shower at a time and have to slowly fill a tub (maybe 3/4 fill speed). To save as much money as I am on electric bill and have unlimited shower lengths (only 1 person at a time mid-Dec to mid-March) is totally worth it. On here today because I’m thinking of upping my panel size so was thinking of going with a larger one now. Regardless, CCRC’s experience with the largest unit not working is nothing like the experience I’ve had, and again I intentionally undersized mine for the house. The website has a clear chart to explain size you need based on number of water fixtures in your home and ground water temperature.
Question:	Can this unit supply a 3,700 sq foot home with 3 1/2 baths
Answer:	In the lower states it can, but in the northern states, multiple simultaneous users, it will be overloaded. If you can afford a 3,700 square foot home, then you can place a unit in each appropriate demand zone and be very glad you did. I love mine, live in KY, get great supply when the water is above 60 degrees, and then it slows the flow as the temperature drops. I have dishwasher, washing machine, garden tube, 2 showers, 3 sinks and 4 people. It is better than great in the summer, okay spring and fall, and we are conservative in the winter.
Question:	What is the power consumption of this tank-less heater
Answer:	The instantaneous power consumption while the hot water is running is quite high (up to 18kW or 27kW depending on which model you’re looking at on this page). However, when no hot water is being used, the power consumption is 0 (or a minuscule amount to run an LED light or something). The total power consumption over the course of several days or longer should be much lower than a tank heater but the short term power usage while the heater is making hot water will be much higher than a tank heater. It’s just that the unit sits idle most of the time while a tank heater will use power fairly frequently even when no hot water is needed as the water in the tank cools off over time and needs to be re-heater fairly constantly
Question:	remote
Answer:	This unit does not have the ability to have a remote temperature control.

Product features

3 Smart Steps for Endless Hot Water

Step 1: Determining your average inlet water temperature is important, this allows you to determine how well your unit will perform in your desired location. A lower inlet water temperature will require a higher kilowatt product.

Step 2: Next you will determine how many applications your unit can run simultaneously at your chosen location inlet water temperature. Tankless electric water heaters are sized for maximum simultaneous use, not maximum fixtures in your home.

Step 3: Determining specifications and electrical infrastructure is important because without the correct infrastructure your unit may not fit into your breaker panel.

Product description

Rinnai V75IN 7.5 GPM Indoor Low NOx Tankless Natural Gas Water Heater

From the Manufacturer

Enjoy the comfort and convenience of continuous hot water at a lower price. Rinnai has expanded the Value Series by adding models to suit medium- and smaller-sized homes. Get the reliability and durability only Rinnai can offer, while saving energy and precious floor space.

• Endless hot water for your entire home
• V75iN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
• Up to 7.5 GPM hot water flow rate (varies by groundwater temp)
• Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
• Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

User questions & answers

Question:	which models are "condensing" units, please
Answer:	I don’t know. But I suggest u look for a different brand. It already failed twice in less than a year and their warranty is a scam. They provide the parts which are pennies and leave out labor.
Question:	How does it effect the water pressure, will it change
Answer:	It does not effect my water pressure at all. I’ve had it for over a year now
Question:	My existing water heater is located next to and shares a flue with the furnace. Can I hook the same way on this
Answer:	Hold up there, previous answer, not so fast. It is true that you should not have both the hot water heater and furnace venting directly into the flue, combining the exhaust. However, some people see their vent pipes entering the flue (or chimney wall) and assume they are both releasing the fumes inside the chimney. In some cases, the venting pipes continue separately up the flue. Joseph, if you have two vent pipes entering your flue, there is a chance that both pipes continue separately up the flue and out the top. If that is the case, you may be able to use the existing hot water vent system. When you look at the top of your chimney, do you see two terminations coming out?
Question:	How does very cold intake water affect performance
Answer:	Sorry to contradict but the temperature of the water going into the water heater will definitely have an effect on the temperature of the water coming out. the water heater needs to provide enough BTUs to heat the volume of water that you need to the water temperature that you want. If the water starts off at a lower temperature it will take more BTUs to get it to the temperature you want. This unit claims to be able to provide 6.6 gallons of hot water per minute but that assumes the water is startling an average temperature. If you have a modern shower head it will only use about 2.5 GPM but if you have second shower going, a hot water faucet open or a clothes washer filling at the same time you will run out of capacity quickly. Rinnai should have tables on their website that shows the ability of the unit to heat water at a variety of starting temperatures to a range of hot water temperatures at a given flow rate.

Product features

Endless Hot Water

Put an end to scheduling your hot water need.

• Never again choose between taking a piping hot shower, doing a load of laundry or running the dishwasher. A Rinnai Tankless Water Heater will never run out of hot water and leave you in the cold.

Hot Water On-Demand

Don't waste while you wait.

• Rinnai tankless water heaters with ThermaCirc360 technology recirculates hot water through your pipes to get you hot water fast.
• While you wait for hot water to travel from your old tank to your shower, you can waste the equivalent of twenty-four 16-ounce bottles of water every time. ─ that means an average of 8,700 bottles of water per person, per year.

Save Valuable Space

Your hot water heater doesn't have to be a behemoth!

• Compact design allows for installation in non-traditional spaces such as the attic, crawl space or even a closet.
• Save 16 sq. foot of space ─ the Rinnai tankless water heater is only the size of a small suitcase.

Affordable, Efficient Savings

Efficiency packaged in a compact design means cut CO2 emissions (as compared to tanks), use less energy and conserve water.

• Use 40% less energy than traditional tanks* because you heat water only when you need it.

100 years of Confidence

Get peace of mind with the unsurpassed quality and innovation of a Rinnai tankless water heater.

• Trust the #1 selling gas tankless water heating brand in North America for all of your water heating needs.
• Smart technological advancements such as WiFi monitoring, your trusted Rinnai service provider can monitor the efficiency of your tankless water heater and address issues before you ever experience a break in service.

Sustainable Reliability

It's a smart investment for now and the future when you intertwine sustainability and reliability.

• Every part of a Rinnai Tankless water heater is replicable so components can be easily swapped vs. buying a whole new system.
• Average life expectancy is 20 years vs. 8-10 for a traditional tank**
• With this premium product, you'll save–both money and worry–in the long run.

Product description

Rinnai V94EN V65iN, Natural Gas - 9.8 GPM, V94eN-Natural 9.4

• Endless hot water for your entire home
• V94eN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Outdoor Installation Only
• Up to 9.4 GPM hot water flow rate (varies by groundwater temp)
• Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
• Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

User questions & answers

Question:	Can the temperature output be adjusted to 105F
Answer:	Most rinnai tankless weather it is out door or indoor, have a control board to adjust temp and either on or off
Question:	Can I use the Rinnai V65EP in Denver, Co? Temperatures during the winter can get below zero
Answer:	It can definately be out doors in freezing temps, tho power failure arent good for it while in a freeze, tho keep in mind it will use alot more energy for frost protection, indoor units are safer amd more efficient in this case
Question:	Does this unit come with controller? rinnai tech said i needed a mc-91-2us controller? do i need to buy separate
Answer:	I bought model V65EN. It came with a wired digital controller. The installer did not run the wire into the house and mount the controller indoors. He simply set the controller at 120 degrees and left the controller inside the unit. If I want to change the temp, I have to take the cover of the unit.
Question:	What does the "Low NOx Mean
Answer:	Good place to check for info like this is Wikipedia. Here is what they say: Energy efficiencieseditMore tangible cost savings are defined when comparing the energy efficiencies of gas heaters with low NOx emissions with conventional flued types. Gas heaters with emission problems are flued and inherently lose substantial energies in the form of hot flue gases to the atmosphere. In addition, the choice of placement of flued heaters is greatly impaired due to flue installation restrictions.In contrast, dedicated low emission gas heaters do not require a flue system. Furthermore, with the introduction of oxygen depletion sensors and thermostatic controls, they do not place critical reliance on ventilation as previously was the case. These heaters can be positioned more conveniently and centralised to affect optimum warm air distribution. By definition unflued low NOx gas heaters are 100% efficient as all heat energy released from the flame is converted to useful heat.Hope this helps. June

Product features

Endless Hot Water

Put an end to scheduling your hot water need.

• Never again choose between taking a piping hot shower, doing a load of laundry or running the dishwasher. A Rinnai Tankless Water Heater will never run out of hot water and leave you in the cold.

Hot Water On-Demand

Don't waste while you wait.

• Rinnai tankless water heaters with ThermaCirc360 technology recirculates hot water through your pipes to get you hot water fast.
• While you wait for hot water to travel from your old tank to your shower, you can waste the equivalent of twenty-four 16-ounce bottles of water every time. ─ that means an average of 8,700 bottles of water per person, per year.

Save Valuable Space

Your hot water heater doesn't have to be a behemoth!

• Compact design allows for installation in non-traditional spaces such as the attic, crawl space or even a closet.
• Save 16 sq. foot of space ─ the Rinnai tankless water heater is only the size of a small suitcase.

Affordable, Efficient Savings

Efficiency packaged in a compact design means cut CO2 emissions (as compared to tanks), use less energy and conserve water.

• Use 40% less energy than traditional tanks* because you heat water only when you need it.

100 years of Confidence

Get peace of mind with the unsurpassed quality and innovation of a Rinnai tankless water heater.

• Trust the #1 selling gas tankless water heating brand in North America for all of your water heating needs.
• Smart technological advancements such as WiFi monitoring, your trusted Rinnai service provider can monitor the efficiency of your tankless water heater and address issues before you ever experience a break in service.

Sustainable Reliability

It's a smart investment for now and the future when you intertwine sustainability and reliability.

• Every part of a Rinnai Tankless water heater is replicable so components can be easily swapped vs. buying a whole new system.
• Average life expectancy is 20 years vs. 8-10 for a traditional tank**
• With this premium product, you'll save–both money and worry–in the long run.

Product description

Get hot water where it's needed, when it's needed with the Bosch ES4 Tronic 3000 T Electric water heater. This 2.5-gallon capacity point-of-use mini-tank fits right under your sink and provides a practical and effective solution to your hot water needs. This smaller model can be plugged right into a 120-volt outlet with the 36-37" cord, or can be installed in-line with a larger hot water source to provide "on-demand" use. The glass-lined tank offers great insulation and added durability, while the heater's fast recovery rate eliminates long waits for hot water. An external dial allows you to easily control the temperature range, and the temperature-and-pressure relief valve enhances your safety. The ES4 Tronic 3000 T from Bosch has a sleek and attractive exterior design that blends in seamlessly with existing decor when installed in a visible location, making this heater a great option in any room.

Manufacturer Contact Information

800-283-3787

• CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
• LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
• INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
• FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
• EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

User questions & answers

Question:	Is it necessary to connect an expansion tank to this heater (for safety purposes)? It states something to that effect in the user manual
Answer:	The expansion tank for this heater is not required. Most people already have these installed in their homes but if not then it would be Ok without it as there is a pressure relief valve on top if something happened. GlobalTowne is an authorized Bosch distributor.
Question:	would this be able to supply a shower
Answer:	A standard flow shower head is around 2.5 gallons per minute. A low flow head is around 1.5 gallons per minute. The recovery rate for a 90 degree temperature rise is 6.8 gallons per hour! So even the 7.5 gallon unit would only provide 4 minutes of shower time before the temp dropped off dramatically. (even at the low flow rate..)
Question:	Can be used "in-line with a large hot water source"? Would it help a large bathtub that runs out of hot water before it gets full from main tank
Answer:	If your bathtub is bigger than your main heater tank, this unit isn't going to do much for you. It will add 2.5, 4, or 7 gallons to the capacity of your main tank, depending on which Bosch unit you buy. The 7 gallon unit requires a specially wired circuit. You will also get a little bit of lukewarm water that was in the line between your main heater and the Bosch unit. Unless your main tank is awfully small and your bathtub massive, the 4 gallon unit should work for you. Maybe a demand type thankless heater in your bathtub hot water feed would be a better choice, but be careful to size it properly for your desired flow rate and temperature rise. Also a tankless is likely to require special wiring.
Question:	When this heater is connected to the hot water line, what happens with the cold water that was sitting in the pipes
Answer:	When the tap is opened, the hot water in the unit flows out. The colder water that was sitting upstream of the unit, enters the unit to be heated. If the tap remains open, the newly heated water flows out, being replaced eventually, (depending on the distance to the main water heater), with the water from the main water heater. You will probably set the unit temperature to equal the main water heater temperature, if you want to keep a constant temperature, but other scenarios are possible.

Product features

Bosch ThermoTechnology

The Bosch Tronic 3000 T point-of-use electric mini-tanks are available in three compact sizes, which can be wall-hung (bracket included) or floor-mounted. They fit easily under a sink, even in a cabinet space, and because they have a sleek and attractive design, they blend in seamlessly with existing decor when installed in a visible location. Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. Great for a wide range of locations!

Water Where You Need It

Provides hot water quickly at point of use and comes with temperature /pressure relief valve installed - 2.5 and 4 gallon tanks feature a simple 120 VAc plug-in connection (1440 watts).

Quality for Long-Life

Thick CFC-free foam insulation for maximum energy efficiency, glass-lined tank for durability.

Great for Small Spaces

Water heaters are compact and lightweight and can be floor, shelf, or wall mounted (except 7 Gallon) - features a sleek and attractive design to blend seamlessly with decor.

Minimize Wait Time for Hot Water

Waiting for hot water at a sink located far from a primary heating source can be frustrating. Only having access to cold water from a sink is just not useful, and plumbing a hot water line to every sink in a home or business requires time and money. To get hot water where it’s needed, when it’s needed, a better solution is to use the Tronic 3000 T from Bosch: a point-of-use electric mini-tank heater. This heater can supplement a primary water heating source, or be used under a single sink. In fact, the Bosch Tronic 3000 T can be used for three different applications: as a sole water heating source for a single sink, as a supplement to an existing heater located far from the sink, and as a buffer installed in-line with tankless water heaters that experience intermittent cold water, also known as 'cold water sandwiching'. No matter the configuration, there’s minimal stand-by loss from this premium mini-tank water heater.

Product description

Professional classic® tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications

• External adjustable digital thermostatic control with LED display (+/1 degree accuracy
• Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
• Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
• 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
• Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
• 54 A

User questions & answers

Question:	We have a 500sq' apt. 1 kitchen sink, 1 lav sink and tub/shower. This tankless heats water to both sinks but nothing to the tub/sh. Help
Answer:	Sinks have aerators to slow down the water where a tub doesn't. It sounds like one possibility is that your exceeding the GPM for this heater. Next possibility, double check an measure your actually getting at least 240v at the heater, I had an issue where my unit was only getting 235v an it was causing a similar issue where only one of the two heating elements was activating. I had it set to 125F but it was coming out 100F. It was warm and without a meter I would of thought it was working correctly until I tried filling a tub. It couldn't even get the water warm. I pulled my wires out an restripped an cut an screwed them in an it fixed my problem, now its measuring around 245v. Make sure there is no copper showing after screwing down your input wires. Now filling the tub I noticed after about 10-15 seconds the water gets too hot to touch. I set it to 135F.
Question:	Do these tankless water heaters require an overflow line to the outside of the home or a pan like is required on normal water heaters
Answer:	No tank, so, no overflow line required. It mounts on the wall. A pan is needed if required by building code in your city.
Question:	what are the wiring and power requirements
Answer:	good morning,60 amp breaker and , number 6 cable !thank you have a great day!
Question:	How many amps are needed for rheem rtex - 13 240v heating tankless electric water heater
Answer:	Hello-The RTEX-13 requires 1x 60A@240V breaker / 6 AWG recommended wire size.Specs - http://cdn.globalimageserver.com/fetchdocument-rh.aspx?name=Specification-Sheet&id=fc3235b7-7cd0-42cd-93bc-7169ea92be31 Rheem 800-432-8373I hope this helped :)Ben

Product features

About Us

Brothers Richard and Donald Rheem founded Rheem Manufacturing Company in Emeryville, CA, in 1925. While the company has produced a number of products in its nearly 100 years of operation, Rheem is currently the manufacturer that produces heating, cooling, water heating, pool & spa heating and commercial refrigeration products, and it is one of the largest manufacturer of water heating products in North America.

• ***Kit requires 2-3 gallons of white vinegar*** Not included. Some tankless manufacturers recommend using vinegar or another cleanser for flushing their equipment. Can also save money if you have vinegar at home already.
• Helps maintain the performance and extend the life of your tankless hot water heater. Easy directions for DIY Homeowner use.
• Includes 1/8 HP Utility Pump, 6 Ft Color Coded Hoses, 3.5 Gallon Bucket with EZ Open Lid & Instructions for using vinegar. Peel Off Lid is super flexible and much easier to remove than traditional paint bucket lids.
• Easily connects to tankless isolation valves using supplied 6' Color Coded Hoses.
• Works with Rheem, Bosch, Noritz, Rinnai, Takagi, Navien, Stiebel, Atmor, Ecosmart, Eccotemp, Marey Power, Tempra, Trutankless and others.

User questions & answers

Question:	i use vinegar but pump was damaged because of acid, that means every time i want to flush, i have to buy a new kit
Answer:	Dear Valued Customer, Thank you very much for your trust in ECOTOUCH and we would like to clarify that you don't need press relief valve to work with the ECOTOUHC tankless water heater electric, because it could handle wide range water pressure. However, we would suggest flow rate of 0.6-1 GPM flow rate for desired outlet water temp from the tankless water heater. You need a tap or a water valve to do easy water flow rate control. If you get any other question, please feel free to contact our customer service mail:[email protected], we will do best to serve and help. Wish you pleasant shopping experience. Best regards Christina from ECOTOUCH
Question:	Does it work with Richmond tankless
Answer:	Dear Valued Customer, Thanks for your trust in ECOTOUCH Appliances and we would like clarify that the ECO90 tankless water heater electric is mainly designed for a single sink use, with flowrate of 0.8-1.2GPM suggested. And you may need hot water of 1.5-2GPM with with decnet outlet temp for a shower, so the ECO90 hot water heater works for shower prupose in South US, with warm inlet temp, and you should get a 13kW unit at least for shower purpose in the northern part. If you get any other question about use of the unit, please feel free to contact our Customers service: [email protected], we will put your case in priority and do best to serve. Wish you pleasant day. Christine from ECOTOUCH
Question:	How many gpm or gph? my noritz tankless heater requires pumping for one hour at 4 gpm
Answer:	Dear Valued Customer, Thank you very much for your trust in ECOTOUCH, we would like to tell you that the tankless water heater electric ECO90 gets a smart heating system of self modulation inside, that helps to keep stable temp. So,we believe it will work great for you. However, we would like to remind you that, the electric hot water heater should not keep working for more than 2 hours, it is not specially designed for the purpose after all. If you get any other question, please feel free to contact us via: [email protected], we will do best to help and serve any time necessary. Wish you pleasant shopping. Best regards Christina from ECOTOUCH
Question:	What type of vinegar do I use? Distilled 5%? 30%? Concentrated
Answer:	Dear friend, Thanks for your trust in ECOTOUCH Appliances and we would like to tell you that the tankless water heater electric ECO90 works properly under all temp condition, except freezing cold with ice. And if you need to it to work with cold temp water inlet, we would like you to check the chart for temp rise with flow rate to ensure you could get desired outlet water temp with sufficient flow rate. If you get any other question about use of the unit, please feel free to contact our Customers service: [email protected], we will put your case in priority and do best to serve. Wish you pleasant day. Christina from ECOTOUCH

Product features

Kelaro Tankless Water Heater Descaler Kit - Just add Vinegar

Like all appliances, tankless water heaters require regular maintenance for optimal performance and efficiency. With proper maintenance, they can last over twenty years.

This cleaning kit comes with everything you need to maintain your water heating system. It includes step-by-step instructions that are easy to follow and quickly connects to your tankless isolation valves using the supplied hoses. Just add your own vinegar.

Mineral Build-up is Bad

Heater elements attract minerals from water and quickly add layers of scale during normal use. The layers get caked on and decrease the surface area available to heat up water.

Avoid Cold Showers

Scale build-up causes water to heat slower and decreases the maximum temperature of water coming out of your heater.

Scale will keep adding layers until the system is no longer able to heat water going through your tankless water heater - meaning cold showers are in your future!

Save Cash

Tankless water heaters don't run efficiently with scale and require more energy (gas or electricity) to run. Extra energy costs add up month after month.

You could hire a plumber to do the maintenance, or save even more - and do it yourself.

Annual maintenance using a Kelaro Flush Kit keeps your system running efficiently and saves you energy. Even better, the kit can be reused year after year - just replace the cleaning agent.

• 🚿【TIPS】Please notice that the 18KW tankless water heater requires 2 x 40 AMP breakers and 2 x 8 AWG wire, the Min. Water Flow is 0.4GPM/1.5L/min. The 24KW tankless water heater requires 3 x 40 AMP breakers and 3 x 8 AWG wire, and the Min. Water Flow is 0.66GPM/2.5L/min.
• 🚿【Save Money Save Cost】No need to preheat before using instant tankless water heater. After using our Rinkmo high efficient water heater, you will find your water Heating Costs Reduce Up to 60%, due to our heater is 99.8% Energy Efficient, you can get hot water within 3s; Create heat without direct contact with metals,No mineral buildup so you don't need to maintenance or fix it and replace the heater coils, No expensive maintenanc cost in the future.
• 🚿【Stable Water Temp for Whole House 】Our smart modulating technology and formula to calculate the difference between the desired temp and current temp, adjusts power input based on flow rate and temp setting in real time by our temp sensors and flow sensors. No sudden temp changes.
• 🚿【Stable Water Temp for Whole House】Our smart modulating technology and formula to calculate the difference between the desired temp and current temp, adjusts power input based on flow rate and temp setting in real time by our temp sensors and flow sensors. No sudden temp changes.
• 🚿【Compact Size Save Space】Rinkmo water heater only like a small suitcase, save your space and giving more to your living area. Easy to install and operation, set temp by turning the button, press the button to switch between Fahrenheit/ Celsius.

Product features

Rinkmo Electric Tankless Water Heaters Help You

Rinkmo has developed a new line of more efficient electric tankless water heaters within 3 years, which with improved design and state of the art technology.

It is a new generation of instant and efficient electric tankless water heaters, safe, efficient and cost effectiveness never before obtainable. Radically solve the problems.

You can install it anywhere hot water is needed.

Rinkmo always cares what consumers care about.

No Worry

Approved.

No above bad things happened under Rinkmo, you can enjoy your life without this terrible things even you have hard water.

Endless Hot Water

Not worry about the hot water even you have a long shower time.

No need to preheat, 3s you can get the hot water you want, no annoying delay and cold water.

Just turn on the tap or shower.

It can run both of our showers and dishwasher/washing machine without issue, up to 3 x faucet, 2 x shower at the same time.

Well suited also good for homes in the Northern U.S. and Canada or in the southern U.S. that have large Roman-style or Jacuzzi tubs that have generally more demanding water usage needs.

Get Comfortable Experience

Rinkmo use high quality temperature sensors and smart flow sensors, it is very important for our using experience.

So you can still get stable temperature water instead of scalding hot water, when you reduce flow rate or low water pressure.

The water temperature will not fluctuates anymore when you take shower and bathe baby.

-Auto protection: when it is detected that the outlet temp reaches 167 ° F (75 ° C) ,the system immediately cuts off heating for safe.

-Temperature abnormal reminder: The display will alarms if the inlet water temp <37° F, or the outlet temp >167° F

Fundamentally Solve Customer Problems

TURELY SAFE compared to other Traditional electric water heater or storage water heater.

Note

18kw Electric Tankless Water Heaters need:

Breaker:2x40AMP

Cable: 2x8AWG

Volts:240/208

Compact Design

Save space design, allows you install it in non-traditional spaces such as the utility room, basement, garage, attic, crawl space or even a closet.

Easy to read digital temperature display, no any complicated requirements for installation without minimal noise output.

Size: 18x14x3.7in

Weight: 11.2lb

Well sealed packaged that you can get a intact product, no any dented or damage.

Save Money Save Time

1. Compared to traditional tanks water heater:

Rinkmo instant Electric Tankless Water Heater only turn on when you need hot water, reduce the store heat loss, saving up to 50% in water heating costs, and you can get the fresh water.

2. Compared to other Electric Tankless Water Heater:

Totally solve most of safe problem and high maintenance costs, more cost-effective under our Original Water Pipe and Electricity Heating Separate tech:

304 stainless steel water pipe, healthy.

No mineral builup, no need to clean it.

No dirty water

You don't need to ask a plumber to repairing machine multiple times.

Real savings for your future cost, time and money.

Good for Other Commercial Places

Rinkmo Electric Tankless Water Heater not only for home use, but also for many other commercial places where need instant, endless and safe hot water, such as: apartment, barbershop, hotel, beauty salon, gym center, restaurent and so on.

More Smart Design:

-High quality sheet metal shell, fireproof

-Screen shows actual outlet water temperature clearly instead of the setting temp, safer

-Machine will auto stop if no water be heated.

-Adapt to 2 voltages: 240V/208V both ok, just 1 button to set it when install

-Cleanable filter

First, before order unit, you need to check below things:

Determining your average inlet water temperature is important, this allows you to determine how well your unit will perform in your desired location.

Second

Next you will determine how many applications your unit can run simultaneously at your chosen location inlet water temperature.

Third

Next you need determining specifications and electrical infrastructure.

Product description

This water heater offers quick, continuous hot water that is on demand for single point-of-use or multiple applications.Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement. Digital temperature control allows you to set your temperature in increments of 1°

• External digital thermostatic control with LED display (+/1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
• Simple installation – bottom 3/4 inch NPT water connections
• Threaded for easy replacement, simple installation, digital temperature display

User questions & answers

Question:	Can this be used in a recirculating system
Answer:	No where on the box does it say contains copper. Box reads.... 100% nonstick surface - hand washable and dishwasher safe- PFOAF Free, PTFE- fiberglass coating, safe up to 500 degrees, FDA approved. We are happy with our purchase.
Question:	How many amps
Answer:	Of course it can.
Question:	how many breakers and what amp
Answer:	No
Question:	will this supply two showers, washer and dishwasher for two people? (1000 sf house
Answer:	Made in China

Product description

"The Stiebel Eltron Tempra 12 Plus Tankless Water Heater features exclusive Advanced Flow Control German patented technology invented by Stiebel Eltron to automatically maintain water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity to ensure that hot showers will never be interrupted. Tempra 12 Plus will typically use 15-20% less energy compared to conventional electric tank water heaters. Although, it’s possible to save significantly more energy depending on personal home usage habits. The difference is that conventional tank water heaters continually store hot water, and as a result, lose 15%-20% of the total energy consumed to the environment around them. This is called standby heat loss. Tank water heaters that use gas or oil are even less efficient, because they also lose heat through their vents to the outdoors. Our tankless water heaters do not need venting, and will not store hot water, waiting for you to use it. They operate on-demand to provide continuous and endless hot water when you need it, and not waste energy when you don’t. CERTIFICATIONS INCLUDE - ANSI/UL Std. 499, CSA Std. C22.2 No. 88, ISO 9001, WQA tested & certified against NSF/ANSI 372 for lead free compliance. TECHNICAL SPECIFICATIONS – Single Phase 50/60 Hz; Voltage: 240 V/208 V; Wattage: 12 KW/9 KW; Min. recommended household electric service 100 A; Amperage draw: 50 A / 44 A; Number and min. recommended size of circuit breakers: 1 x 50 A (DP); Number of runs and min. recommended wire size (copper): 1 x 6/2 AWG; Max. temperature rises: 54 F/41 F at 1.50 GPM, 36 F/27 F at 2.25 GPM, 27 F/20 F at 3.00 GPM, Min. water flow to activate unit: 0.37 GPM /1.4 l/min; Weight: 13.5 lb / 6.1 kg; Nominal water volume: 0.13 gal / 0.5 l; Max. inlet water temperature: 131 F/55 C; Working pressure: 150 PSI/10 BAR; Tested to pressure: 300 PSI / 20 BAR; Water connections: 3/4"" NPT."

• CONTINUOUS FLOW – Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again
• SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically control water flow. Savings monitor even shows how much you save on energy costs
• EASY OPERATION – Electronic switch activates the hot water heater and it’s noise free while in use. Has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work
• TEMPRA 12 PLUS – This specific model is 12kW, 240V, requires a min recommended electric service of 100 A, and offers an output water temperature of 68° to 140°F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels
• WARRANTIES INCLUDED – Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase

User questions & answers

Question:	How can i make tempra trend 24 work with my bosch shx33a05uc/22 dishwasher? the dishwasher will not advance to next cycle. water is not hot enough
Answer:	This water heater activates at 0.5 GPM and will heat to your set temperature at the correct flow rate for that set temperature. Please call our Technical Department at 1-800-582-8423 Ext 6 with more details so we can help you better. (for example, does the dishwasher have its own heating element, distance between the 2 units, etc...) Thank you.
Question:	Electric panel is ~50 feet from where i want to install the tempra 29 trend. is this distance ok for #8 thhn wire
Answer:	The recommended wire is 8/2 and there is not a limit to distance written in the install directions. You need to check with your electrician. Make sure he is state license and insured. We have installed a Tempra 29 and our electrician ran three 8/2's approx. 30' with no question. But check with your electrician and local codes. God bless you and happy New Year.
Question:	Is there an installation kit available for this? i am installing in a remote location & plumbing parts are not available? water lines are pvc
Answer:	There is no specific installation kit. However, we suggest using flexible braided hose connections that screw onto the hot and cold water for the first 18" or so. These connections are easy to remove to check a filter screen or if needed to work on the unit in general. The connections are 3/4" NPT. Please feel free to call our Technical Support Department at 1-800-582-8423 ext 6 with any questions. Thank You.
Question:	Where is it made
Answer:	We asked the Manufacturer and they replied: "These are made in Holzminden, Germany"

Product features

1 Find your approximate ground water temperature on the map.

2 Check the column on the table to see how many fixtures can be supplied at the same time for each model.

Product description

This water heater offers quick, continuous hot water that is on demand for single point-of-use or multiple applications.Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement. Digital temperature control allows you to set your temperature in increments of 1°

• ON/OFF Dial Control with adjustable digital temperature display
• Self-modulating power control
• 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
• Bottom 3/4" NPT water connections
• On demand, consistent and continuous hot water

User questions & answers

Question:	Can this directly replace a 40 gal tank heater with a 30A double pole breaker? What are power requrements
Answer:	No it can't. RTEX-24 requires 3 sets of wire and ground, and it needs 3x 40amp breaker. That's a total of 120amps
Question:	Can you use the 10/3 for one of the cicuits
Answer:	No. It requires three legs of 8-2.
Question:	Can the unit operate as a rtex-18 if i only hook up 2 of the elements? because i only need the 18 specs as of now but would like the option to upgrade
Answer:	Actually you can do this but you must be careful on which circuits are connected. Rheem says the elements are activated from right to left as power is required. The right most element connection also provides power to the control so this must always be connected. If the very left element is left disconnected, you will only get 2/3 of the rated power on a 3 element unit.
Question:	Why are 2 answers for the breaker requirements. Is it 3 double 40 or 3 double 60 amp
Answer:	If the unit draws 40 amp. you need a 2 pole 40 amp breaker 2 #8 wires good for 40 amp and 1 # 10 wire for a bond. Now if the unit draws 60 amps you need 2 # 6's good for 65 amps. A 2 pole 60 amp breaker and 1 # 8 for a bond( ground wire).

Product features

Rheem 240V 3 Heating Chambers RTEX-24 Residential Tankless Water Heater

Professional Classic tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications.

Performance Features

• On demand, continuous hot water
• Compact and stylish with digital temperature control in increments of 1°F ranging from 80°F to 140°F
• 99.8% Energy efficient
• Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement
• Simple Installation
• Digital temperature display

Applications

• Standard Hand Sink – 0.5 GPM
• Washing Machine – 1 to 1.5 GPM
• Kitchen Sink – 1 to 2 GPM
• Dishwasher – 1 to 2 GPM
• Water-Saver Shower Head – 1.5 GPM
• Standard Shower Head – 2.0 GPM
• Bath Tub – = 4 GPM
• Whole-Home – up to 6 GPM

Average Gallons Per Minute (GPM) based on 2010 Plumbing Standards.

Unique Features

• External Digital Thermostatic Control with LED display (+/- 1 degree accuracy)
• Most advanced self-modulation, adjust power to meet hot water demand
• Durable Copper Immersion three heating elements, field serviceable
• Simple Installation – Bottom 3/4"NPT water connections

Product description

Specifications:

Heat Output Power: 36KW

Water Output: 18L/min(4.8GPM)

Gas Supply: LPG(Liquid Propane Gas)

Gas Pressure(LPG): 2800 Pa

Rubber Gas Hose(Outer diameter): 20 mm / 0.79"

Suitable Water Pressure: 0.02-0.8 Mpa

Starting Pressure: 0.015 MPa

Thermal efficiency: ≥80.8%

Cold Water Pipeline: Short Pipeline equipped or G1/2" Steel Tube

Warm Water Pipeline: Long Pipeline equipped or G1/2" Steel Tube

Smoke Exhaust Pipe Output Diameter: 4.5" (Smoke exhaust pipe not included )

Package Size: 35x16x65 cm / 13.7" x 6.3" x 25.6" ;

Gross weight: 18.90 lbs



Feature:

We dedicated to providing you an easy and efficient outdoor life style. Portability, energy saving and innovation are the three key elements .

With the most advanced technology in water heating, our tankless water heaters can save you up to 50 percent on water heating costs. water heaters save you money, they are also compact and wall-mounted so you save valuable storage space for a new closet!

The tankless gas water heater supplying instant hot water,ideal for apartment,small homes and cabins. You can get comfortable shower by adjusting the water termperature through summer/winter switch.

Easy read LED temperature display shows output water temperature.Water heater with innovative combustion technology and advanced multiple protection systems to ensure your safety.



Package Content:

1 x Water Heater

1 x Shower Kit

1 x User Manual

• 【SUPERB MATERIALS】- Power: 36 KW; Hot Water Output: 18 L/min(4.8 GPM); Gas Supply: LPG(Liquid Petroleum Gas); Water Temperature: 50 °F -140 °F; This tankless water heater propane is crafted with stainless steel case and inner copper devices, making it anti-rust, high-temperature resistant, no water leakage, and durable. Come with a portable shower head kit.
• 【6-IN-1 MULTI PROTECTIONS】- Our propane water heater is upgraded with six protection ways to ensure your security on the shower, such as Over 75℃(167 °F) protection, low water flow protection, anti-frozen protection, over water pressure protection, no flame protection, 20min timer, etc.
• 【EFFORTLESS CONTROL】- You can easily adjust the water temperature by rotating the gas & water knobs on the panel. Switch the summer/winter mode to change the fire row amount, and save 40% gas in your bill. The combustion device will reach ≥80.8% thermal efficiency to save 11.5% energy. Start at a 0.015 MPA low water pressure; normal working pressure is 0.02 MPA-0.8 MPA.
• 【WALL-MOUNT & DETAILS】- This gas water heater is light-weight & portable to be installed on the wall, tree, or outside the RV for space-saving. Well-selected devices are included like copper standard G1/2" hose connectors, filtration mesh, gas emission tube, and copper water tank. Ignite the heater with 2 "D"cell batteries, and no pilot light is needed.
• 【DIVERSIBLE USE SCENARIOS】- CE test passed, fast to heat, this propane hot water heater is perfect for showering, pet washing, outdoor cleaning, camping and trip road, etc. Provide you with constant hot water, especially in winter or cold places. Instant, endless hot water, enjoy a comfortable showering at any time & any location.

User questions & answers

Question:	What size is the exhaust
Answer:	4"
Question:	I just want to verify if this can be installed indoors
Answer:	I would not unless you hook vent for exhaust to outside
Question:	Is it correct that this cannot run longer that 20min
Answer:	It will shut off at twenty minutes. Turn the water off, wait a few seconds, then turn it back on and you'll be good for another twenty minutes.
Question:	Is this on demand. Does it turn on when water is started or do you have to turn it on at every use
Answer:	yes, when you open the hot water in the bath or kitchen, the water heater automatically starts to heat the water. no need to turn it on.. and it just work when you need hot water

Product features

Stainless Steel Material

This RV water heater propane adopts brushed stainless steel shelling, which makes it anti-rust and fashionable. We also send you a shower head kit and install accessories for your convenient showering.

Six Considerate Protections

This on demand propane water heater is designed with methods like Over 75℃(167 °F) protection, low water flow protection, anti-frozen protection, over water pressure protection, no flame protection, 20min timer, etc.

LED Screen & Knobs

We adopt an LED screen to display real-time water temperature. Gas control knob: rotate it clockwise to increase the gas supply. Water control knob: turn it clockwise to get more hot water. Water temperature ranges from 50 °F to 140 °F.

Summer/Winter Mode

This product uses LPG as the primary energy source and the enclosed combustion structure to provide uniform fire and higher burning efficiency. The switch of winter/summer mode will change the fire row to save gas.

Convenient & Exquisite Details

Exquisite devices are considered in this product: filtration mesh, standard G1/2" copper water inlet & outlet connector, gas emission tube, D-type battery cases, and tin-plated copper water tank for safe use and durability.

Quick Install & Wide Use

Instant 18 L/min gas water heater with wall-mounted design offers a relaxing shower in the bathroom while the machine is installed in the kitchen, avoiding the risk of toxic gas leakage during the bath. Perfect for outdoor camping, pet washing, RV traveling.

18L LPG Hot Water Heater

This is an excellent hot water heater, which uses LPG(Liquid Petroleum Gas) as the main energy source. When started, it will supply endless hot water anywhere. With LED current temperature display and freely adjust the water temperature by gas & water outlet knob. Multi-level protection to ensure your safety. It is compact, wall-mount, and cool in look—a must-have home appliance for your room.

Product description

Rinnai RU199iN Tankless Water Heaters, 11 GPM, RU199in-Natural Gas/11

• Endless hot water for your entire home
• RU199in Sensei SE+ Super High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
• Up to 11 GPM hot water flow rate (varies by groundwater temp)
• Circ-Logic technology allows you to set recirculation patterns that coincide with your typical habits. Hot water is available when you need it!
• Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

User questions & answers

Question:	How many BTUs
Answer:	The expansion tank for this heater is not required. Most people already have these installed in their homes but if not then it would be Ok without it as there is a pressure relief valve on top if something happened. GlobalTowne is an authorized Bosch distributor.
Question:	What recirculation pump will work with this heater
Answer:	A standard flow shower head is around 2.5 gallons per minute. A low flow head is around 1.5 gallons per minute. The recovery rate for a 90 degree temperature rise is 6.8 gallons per hour! So even the 7.5 gallon unit would only provide 4 minutes of shower time before the temp dropped off dramatically. (even at the low flow rate..)
Question:	What is wi-fi ready means and what what will you use it for ? also what circ-logic capable means? do you need recirculation pipe for it
Answer:	If your bathtub is bigger than your main heater tank, this unit isn't going to do much for you. It will add 2.5, 4, or 7 gallons to the capacity of your main tank, depending on which Bosch unit you buy. The 7 gallon unit requires a specially wired circuit. You will also get a little bit of lukewarm water that was in the line between your main heater and the Bosch unit. Unless your main tank is awfully small and your bathtub massive, the 4 gallon unit should work for you. Maybe a demand type thankless heater in your bathtub hot water feed would be a better choice, but be careful to size it properly for your desired flow rate and temperature rise. Also a tankless is likely to require special wiring.
Question:	Does this unit come with a vent kit? Thanks
Answer:	When the tap is opened, the hot water in the unit flows out. The colder water that was sitting upstream of the unit, enters the unit to be heated. If the tap remains open, the newly heated water flows out, being replaced eventually, (depending on the distance to the main water heater), with the water from the main water heater. You will probably set the unit temperature to equal the main water heater temperature, if you want to keep a constant temperature, but other scenarios are possible.

Product features

Endless Hot Water

Put an end to scheduling your hot water need.

• Never again choose between taking a piping hot shower, doing a load of laundry or running the dishwasher. A Rinnai Tankless Water Heater will never run out of hot water and leave you in the cold.

Hot Water On-Demand

Don't waste while you wait.

• Rinnai tankless water heaters with ThermaCirc360 technology recirculates hot water through your pipes to get you hot water fast.
• While you wait for hot water to travel from your old tank to your shower, you can waste the equivalent of twenty-four 16-ounce bottles of water every time. ─ that means an average of 8,700 bottles of water per person, per year.

Save Valuable Space

Your hot water heater doesn't have to be a behemoth!

• Compact design allows for installation in non-traditional spaces such as the attic, crawl space or even a closet.
• Save 16 sq. foot of space ─ the Rinnai tankless water heater is only the size of a small suitcase.

Affordable, Efficient Savings

Efficiency packaged in a compact design means cut CO2 emissions (as compared to tanks), use less energy and conserve water.

• Use 40% less energy than traditional tanks* because you heat water only when you need it.

100 years of Confidence

Get peace of mind with the unsurpassed quality and innovation of a Rinnai tankless water heater.

• Trust the #1 selling gas tankless water heating brand in North America for all of your water heating needs.
• Smart technological advancements such as WiFi monitoring, your trusted Rinnai service provider can monitor the efficiency of your tankless water heater and address issues before you ever experience a break in service.

Sustainable Reliability

It's a smart investment for now and the future when you intertwine sustainability and reliability.

• Every part of a Rinnai Tankless water heater is replicable so components can be easily swapped vs. buying a whole new system.
• Average life expectancy is 20 years vs. 8-10 for a traditional tank**
• With this premium product, you'll save–both money and worry–in the long run.

• 【CONTINUOUS FLOW】Equipped with a 12KW high-power heating system, BIS12 is specially designed for bathing, which can automatically maintain water temperature for your constant comfort during bathing. If the hot water demand exceeds the capacity, simply set the temperature to 116°f or reduce the water flow through the water flow-regulating valve, and the hot water shower will never be interrupted. (116°f is the most comfortable temperature for bathing)
• 【SPACE & ENERGY SAVER】Mirror design provides aesthetic perception. The compact design not only saves space but also provides endless hot water for the whole house. The power output can be set through 9 temperature setting gears. When you don't need the water too hot, BIS12 can automatically change gears to reduce charge. It's 99.8% energy efficiency which can save a lot of electric charges.
• 【EASY OPERATION】 The water flow passes through the electronic flow sensor and then through the powerful cast aluminum internal heating system to achieve water and electricity separation, which is safer and more reliable. In addition, the corrosion inside the pipe is avoided to prolong the service life. No noise when in use, and it has the function of digital display and setting temperature memory.
• 【Power 12 PLUS】 The specific model of BIS12 is 12KW, 220V / 240V. It is recommended that the minimum requirement of household appliances is 100A, and the output water temperature is 86 ° f to 131 ° F. Each device is equipped with multiple protection devices and has been strictly tested to ensure 100% safety. The internal water and electricity are operated separately to avoid the hazards of leakage and fouling.
• 【WARRANTIES INCLUDED】BISELONG's top tankless instant water heaters have reached the highest standards of comfort and reliability. The purchase includes our 7-year leakage and 3-year parts warranty. Accessories include (2PCS 16"Long, 1/2"NPT stainless steel copper head hose, rain sprinkler, power wall, water flow valve).

User questions & answers

Question:	Water connections :1/2” npt. is this smaller than standard 40gal water heater connectors or same size
Answer:	No
Question:	What is the function of the part 'Anti electric wall'? What doe it do? Is it install on the inlet or outlet of the heater
Answer:	Requires two 40 amp breakers (80). Not 4 (160) you would only have room for this and an oven on 200 amp service. Also if you only have 100 amp service and don't want to upgrade to 200 amp, don't look at these.
Question:	What does a red line mean when you first power this heater on
Answer:	The RTEX-18 (240 Volt) requires (2) 40 amp breakers and 8 AWG wire.
Question:	Do you have a remote? Wifi? Range if inferred? Can it be controlled by a mobile device
Answer:	Hello- Sizing an electric tankless is very difficult. I always recommend that you call Rheem at 800-432-8373 to get a suggestion. I want to say this will only keep up with ONLY 1 source of hot water at any one given time. That being said, the RTEX-18 performance ( @240V )- 1.5GPM - 82degree rise 2.0GPM - 62degree rise 2.5GPM - 49degree rise 3.0GPM - 41degree rise So.... what it can keep up with all depends on: -the temp of water coming into the house -the flow rate of each faucet/shower head/washing machine/source of hot water -outlet temp desired I hope this helped :) Ben

Product features

Innovation, and Energy Saving

With more than 10 years of rich experience in the home appliance industry, BISELONG appliances have advanced technology, high-quality craftsmanship, reliability, and simple and easy-to-operate functional design, so as to provide you with a relaxed, efficient, and warm lifestyle. We are committed to innovation and based on consumer research and following strict quality standards, we provide user-friendly energy-saving equipment to meet your requirements at the best product.

We provide the equipment with a one-year Quality replacement, 7-year leakage, and 3-year parts replace. You don’t have to worry about quality problems. The equipment is a high-quality product, and we are full of confidence. If there is any problem, Our staff and technicians will be online 24 hours.

Bullet Points of BISELONG Electric Tankless Water Heater

Features

INSTANT ENDLESS HOT WATER - No need pre-heating and get hot water in seconds.

FLEXIBLE 360° INSTALLATION – Can be mounted in any angle, ideal for bathroom, kitchen, school, hospital and hair salon.

COMPACT SIZE - For indoor installation with compact and space saving design.

MULTIPLE SAFETY PROTECTIONS - Over temperature protection,Dry heating protection,Leakage protection,Water and electricity line separated.

Compact Design

Save space design, allows you install it in non-traditional spaces such as the utility room, basement, garage, attic, crawl space or even a closet.

Easy to read digital temperature display, no any complicated requirements for installation without minimal noise output.

Size: 11x2.7x18in

Weight: 10.95lb

Well sealed packaged that you can get a intact product, no any dented or damage.

Endless Hot Water

Not worry about the hot water even you have a long shower time.

No need to preheat, 3s you can get the hot water you want, no annoying delay and cold water.

Just turn on the tap or shower.

It can run both of our showers and dishwasher/washing machine without issue, up to 3 x faucet, 2 x shower at the same time.

Well suited also good for homes in the Northern U.S. and Canada or in the southern U.S. that have large Roman-style or Jacuzzi tubs that have generally more demanding water usage needs.

Good for Other Commercial Places

BISELONG Electric Tankless Water Heater not only for home use, but also for many other commercial places where need instant, endless and safe hot water, such as: apartment, barbershop, hotel, beauty salon, gym center, restaurent and so on.

More Smart Design:

--Mirror design, easy to scrub.

-Screen shows actual outlet water temperature clearly instead of the setting temp, safer

-Machine will auto stop if no water be heated.

-Adapt to 2 voltages: 240V/220V both ok, just 1 button to set it when install

-Cleanable filter

Suitable for all regions of the United States

It is important to figure out your average inlet water temperature, this determines if you can get hot water of desired temp from the hot water heater. Outlet water temp equals inlet water temp plus temp raise(by the hot water heater).

Test Data

Check the chart to figure out the flow rate suggested for your area and the corresponding outlet water temp to see if it meets your need. For example, if inlet water in your area is 67℉, you are able to get 1.6GPM hot water @ 121℉, if you set temp lower, you are able to get more than 1.6GPM, correspondingly.

Product Parameter

Determining specs and electrical infrastructure is important because without the correct infrastructure your unit may not fit onto your breaker panel. We would like to remind you of reading the user manual prior installation and using for the first time.