12 best gas hot water heaters

Gas hot water heaters are common appliances used for heating water in residential and commercial buildings. They are a part of the plumbing system and play a crucial role in providing hot water for various purposes, such as bathing, cooking, and cleaning. Here's some information related to gas hot water heaters, their parts, and their relevance to rough plumbing and home improvement:

Gas Hot Water Heaters:

  1. Operation: Gas hot water heaters use natural gas or propane to heat water. A burner at the bottom of the heater heats a tank of water. As the water heats up, it rises to the top of the tank, where it is then drawn into the plumbing system when hot water is needed.

  2. Tank vs. Tankless: Gas hot water heaters come in two main types: tank-style and tankless. Tank-style heaters store a specific amount of hot water in a tank, while tankless heaters heat water on-demand without storing it.

  3. Capacity: The capacity of a gas hot water heater is measured in gallons. Common sizes include 40 gallons and 50 gallons for residential use. Commercial heaters can have larger capacities.

Water Heater Parts:

  1. Tank: In tank-style water heaters, the tank itself is a critical component.It is insulated to retain heat and keep the stored water hot.

  2. Burner: The burner, often at the bottom of the tank, ignites the gas to heat the water. It is controlled by a thermostat.

  3. Thermostat: The thermostat regulates the temperature of the water. Users can adjust it to set the desired hot water temperature.

  4. Anode Rod: Anode rods are sacrificial components that help prevent corrosion inside the tank by attracting corrosive elements. They need to be periodically inspected and replaced if necessary.

  5. Pressure Relief Valve: This safety device releases excess pressure to prevent the tank from bursting.

  6. Flue: Gas hot water heaters have a flue or venting system to remove combustion gases safely.

  7. Dip Tube: The dip tube directs incoming cold water to the bottom of the tank, ensuring the hot water at the top is ready for use.

Rough Plumbing: Gas hot water heaters are typically installed as part of the rough plumbing system. This involves connecting the water heater to the water supply lines, gas lines, and flue. Proper installation is essential to ensure safety and efficiency.

Tools Home Improvement: For maintenance, repair, or installation of gas hot water heaters, various tools may be required. These can include pipe wrenches, pipe cutters, Teflon tape, gas line fittings, and a variety of plumbing tools.

It's important to note that working with gas appliances, including gas hot water heaters, can be potentially dangerous if not done correctly. Installation and maintenance should ideally be performed by licensed professionals to ensure safety and compliance with local building codes. Regular maintenance, such as flushing the tank and checking safety features, is essential to extend the life of your gas hot water heater and ensure it operates efficiently.

Below you can find our editor's choice of the best gas hot water heaters on the market
  

Rinnai V65IN Tankless Water Heater, Large, V65iN-Natural Gas/6.5 GPM

Rinnai

Based on 622 reviews Check latest price

Product description

V65iN is the perfect combination of high efficiency, comfort and value in a natural gas tankless water heater from Rinnai. Ideal for small to medium homes or remodels, compact, easy-to-install, reliable and perfect for indoor locations; Rinnai products provide peace of mind with warranties that surpass the competition.

From the Manufacturer

Features ENERGY STAR Qualified Energy Factor of .82 for Natural Gas and Propane Certified for Installation in Manufactured (Mobile) Homes Leak detection shuts off water to unit to limit property damage Enhanced scale detection lessens possibility of serious, long-term damage to unit Temperature lock prevents accidental or unauthorized changes to water temperature Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels Rinnai Value Series Tankless Water Heater Product Warranty Dimensions Width: 14 Inches Height: 23 Inches Depth: 9 Inches Weight 45.6 Pounds Ignition Direct Electronic Hot Water Capacity 0.26 to 6.6 GPM Minimum Activation Rate 0.4 GPM Minimum/Maximum Gas Rate (Input BTUs ) 10,300 150,000 Energy Factor 0.82 for Natural Gas and Propane Energy Star Yes Approved Gas Types Natural Gas or Propane Temperature Settings 98F - 140F with MC-91-2US 98F - 160F with MCC-91-2US Type of Controller MC-91-2US (included) MCC-91-2US (optional for Hydronic Applications) MC-100V-1US Deluxe Controller (optional) BC-100V-1US Bathroom Controller (optional) Ultra Lox NOx Yes Electrical AC 120 Volts, 60 Hz Electrical Consumption Normal: 76 Watts Standby: 2 Watts Anti-Frost Protection: 120 Watts Service Connections Gas Supply: 3/4 Inch MNPT Cold Water Inlet: 3/4 Inch MNPT Hot Water Outlet: 3/4 Inch MNPT

  • Endless hot water for your entire home
  • V65iN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
  • Up to 6.5 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.

Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater, Liquid, White

Based on 372 reviews Check latest price

Product description

MAREY GA10LP Indoor Propane Gas Tankless Water Heater can provide up to 2. 7 Gal. per minute for a perfect shower at 115°F output water temperature. It is also called water heater on demand, because it heats water only when needed, saving energy. It is designed in the USA and it's perfect to supply endless hot water for up to 2 or 3 points of use simultaneously (for a variety of residential hot-water applications). Its compact design saves space and is easy to install: you will only need 2-D cell battery for the ignition and a venting (not included in the box). MAREY has been on the water heating business since 1955, bringing tradition and innovation together.

  • Provide endless hot water on demand and only as needed
  • Save up to 60% on electricity bills for water heating
  • Compact design saves space and is easy to install almost anywhere
  • No electrical connection is required so it's perfect alternative for those homes experiencing frequent power outages
  • Unlimited hot water whenever is needed
  • 5-year
  • Allows water temperature to be controlled

User questions & answers

Question: What size box does it ship in
Answer: Hello. The 10L ships in a box that measures approximately 16 x 28 x 10 inches. GadgetsGo is an Authorized Marey Distributor. Kind Regards, John M. GadgetsGo
Question: For gas heater what is the outside dimensions, high , wigth , depth. Is it 23.6x13.6x6.9 with the extaust cap on top. Thanks, Ray
Answer: Hi Ray. The dimensions you gave are for the body of the heater only, not including the exhaust cap, since it is removable, and not including the water and gas connections at the bottom.Kind Regards,RossGadgetsGo
Question: Does it need to be vented
Answer: yes i have one in an outdoor shower and the other inside a bathhouse and we put a 90 degree turn on it to go out the side of the wall and works just perfect.
Question: Does this come with exhaust/vent pipes
Answer: Greetings, The Marey Gas 10L Tankless heater does not come with the Exhaust/Vent pipes. You will need to locate B-vent or Z-Vent Pipe material size pipe 4" online.

Product features

Marey 10L Gas Tankless Water Heater

This compact model saves space and allows easy installation just about anywhere. It heats unlimited volume of water as needed and permits you to regulate the water flow and gas flow to better temperature. So if you instant and on demand want hot water, this is the product for you!

It is also a perfect alternative for those homes experiencing frequent power outages since this heater does not require electricity. The 10L unit provides up to 3.1 Gallons Per Minute, to provide hot water for your home family at multiple points of use!

Easy to install!
Multiple Points of Use!

Enjoy many features! Check temperature map below for more information on simultaneous points of use on your region.

Save Energy!

It can last a lifetime, keeping 87% efficiency level!

We are in the market since 1955!
GA10LP

Avaliable in Propane Gas.

GA10NG

...or also Avaliable in Natural Gas! Make sure you select your preferred gas type before you purchase your model.

A.O. Smith GCG-50 ProMax Tall Gas Water Heater, 50 gal

Based on 9 reviews Check latest price

Product description

The ProMax family offers a wide range of water heating solutions-from models that help you qualify for gas utility rebates to high recovery models ideal for large families with high demand for hot water. And, our specialty vent gas water heater options can be installed almost anywhere in your home because they can vent up to 40 feet. Our direct vent models feature two-pipe combustion systems that draw clean air from outside the home, eliminating any worries about indoor ventilation.

  • Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
  • Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
  • Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
  • Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
  • Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

User questions & answers

Question: Where does the two vents go on the unit
Answer: thank you for being interested in one of our products. Here is the installation manual for the GCG-50 http://s3.supplyhouse.com/product_files/AO-Smith-GCG-50-Install-Instructions.pdf and page 2 shows the piping and venting on the unit. More specific information can be found in the installation manual as well.
Question: Is this a power vent model
Answer: no
Question: is 110 or
Answer: It's a gas heater... No electricity required. I'm not sure the technology but the blinking lights work off the heat somehow.
Question: What is the input rating? (BTU
Answer: 40k BTU burner http://www.hotwater.com/water-heaters/residential/conventional/gas/promax/promax-atmospheric-vent-gas-tank-water-heater-gcg-50/

Eccotemp fvi12-NG FVI-12 Natural Gas, 3.5 GPM, High Capacity Tankless Water Heater, White

Based on 203 reviews Check latest price

Product description

The incredibly efficient Eccotemp FVI-12 Natural Gas Tankless Water Heater uses an intense gas-fired flame to instantly heat water the moment it passes through the unit, so as long as you feed water in, hot water will come out! Comes ready to install. With the included horizontal vent kit, this Eccotemp FVI-12 Natural Gas Tankless Water Heater can be installed for indoor use right out of the box. Great for cabins and smaller homes, so you don't bust your budget for a hot shower! The Eccotemp FVI-12 Natural Gas Tankless Water Heater is a manual water heater. This means that any water temperature adjustments must be made at the face of the unit using the knobs for water flow and gas pressure. Mixing cold water at your output source is not recommended. Have questions? Contact support at 1-866-356-1992 or [email protected]

  • Whole home indoor, gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver.
  • For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
  • Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
  • Safe electronic ignition system; plugs into standard 120v electrical outlet with UL-listed cord.
  • Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.
  • 1.07 A

User questions & answers

Question: I am very interested in this item but I am struggling to buy it after reading the reviews about it running cold suddenly. Any more input
Answer: "So far we really enjoy this heater. In six months of usage we've overcome the slight learning curve. Our way is to set the thermostat at about 108 degrees in the summer, then about 114 in winter. Showers don't need any (or much) cold water added, because adding cold through low-flow showerheads and faucets will restrict the hot, which shuts off the heater.And the LED temperature readout isn't absolute. When you set it to 110 degrees (for example) during the summer, it might run at 90 in the winter. That's because of the colder water coming in. This also explains why I adjust it twice yearly.Lastly, the water needs to be running fully during temperature adjustments."I asked my brother to write his answer because he installed it and adjusted the temperature for me. It is now perfect. Right now I turn the shower handle on full hot, then get in and adjust it a little colder. When I first got it, the temp was set too high and when I got in the shower then and turned it colder, it would get freezing.So he adjusted the temp a couple of times and it is just right now. As he said, he will adjust it twice a year. I just love it!
Question: what size is the gas line inlet
Answer: This comes with a 1/2 inch NPT inlet.
Question: The manual for this states min operating water pressure is 4.5 psi one place and 14 psi another. the amazon description says 40 psi. what is it
Answer: Hello. This is a common problem that Amazon product descriptions are inaccurate. Always rely on manufacturer info. The correct info is that the minimum PSI is 14 plus a calculated amount for pipe pressure loss plus a calculated amount for shower/faucet pressure loss plus a 5 PSI safety margin. And if you are sending the hot water to upper floors, then add 0.44 PSI per foot.GadgetsGo is an Authorized Eccotemp Dealer.Kind Regards,Ross KGadgetsGo
Question: Would this work for a $ bedroom 2 bathhouse, and does it come with all the fixings with it or will i have to buy them sepately
Answer: I have it in a 3 BR 1 bath rental property with 3 people. They take showers one right after the other and said they don't run out of hot water whatsoever. It seems to do wonderful there. its been installed now for 5 months and no problems, tenants are very happy with it. I had to buyer the gas line, plumbing etc to where it tied in, but that's normal with any new installation. It was a tremendous savings over a traditional water heater, and the tenants and I are very glad we installed it. So much so, that I am installing the same one in a diner I own for the dishwasher. I think it will work great. Hope that helps.

Camplux Tankless Water Heater Natural Gas,3.18 GPM High Efficiency Instant Hot Water Heater with Celsius Digital Display,Residential Natural Gas Water Heater for 2-3 Persons Bathroom Indoor Use,White

Based on 19 reviews Check latest price

Product description



1.The Camplux CA318 is perfect for vacation cabins, cottages, and smaller homes.

2.This model has a sleek, black tempered glass casing with automatic temperature controls and a touch screen with an LED digital display that shows the output temperature reading.

3.It comes with a horizontal stainless steel vent pipe, ready to install and with its 120-volt power cord powering the internal exhaust fan and digital display.

4. For indoor installation with safe, efficient power ventilation. Stainless vent pipe included.

5 It delivers up to 3.18 Gallons Per Minute of hot water ranging from 95-149 degrees Fahrenheit(35-65 degress Celsius).

6.The ideal low water pressure operating range for the Camplux CA318 is 3.6~145.0 PSI, work easily with great performance.

7.The operating propane gas pressure is 0.4PSI with maximum power output 82,000btu/hour.

8. It only generates about 42 watts and 0.35 amps during operation, making it an ideal energy efficient appliance.

9. Flame failure device, anti-freezing protection and oxygen depletion safety shutoff protection.

10.The gas water heater can\'t be used for drinking water.



Easy to Use

Get the instant tankless gas hot water system that\'s easy to set up and use!

1. Install the tankless gas water heater on the wall.

2. Install the stainless steel vent pipe.

3. Connect shower hose and shower head to the hot water outlet.

4. Connect water hose to the water inlet.

5. Connect gas pipe to the gas inlet.

6. Plug in the power cord.

7. Turn on water tap and enjoy instant hot water!.



What's in the Box

1 x Camplux hot water system

1 x Gas inlet connectors 1/2" BSP Female x 5/8" UNF inverted flare male

1 x stainless steel vent pipe

1 x accessories package(included water tape & fixing screws )

1 x instruction manual



Inquiry & aftersales service: [email protected] Service hotline: 844-538-7475

  • Sleek,Modern,Compact Design -Trendy and modern design with unique black glassy front panel featuring an easy to use LED touchscreen controls with Celsius Digital & Display.The compact size - (L)14.4 x (W)4.7 x (H)25.4 inch tankless water heater saves more space than traditional tanks.
  • On-Demand Tankless Water Heater-High water capacity range 0.8 - 4.8 GPM, Camplux high efficiency 3.18 GPM natural gas tankless water heater delivers 3.18 gallons per minute of on-demand endless hot water ensures instant hot water for 2-3 persons home comfortable shower.
  • Multiple Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.
  • Convenient, Easy Installation -Uses standard 1/2" NPT water fittings and comes with 2.3 inch horizontal venting pipe allowing for convenient and quick installation,great for whole home,small cabins and remote apartments use. You can take Camplux customized wall thimble-WT236 for perfect indoor use.
  • Considerate Customer Service- Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.

Product features

Features-

  • The Camplux CA318 is perfect for whole house use,rated at 3.18 GPM that activates only on demand.
  • This model has a sleek, black tempered glass casing with automatic temperature controls and a touch screen with an LED digital display that shows the output temperature reading.
  • Comes with a horizontal stainless steel vent pipe, ready to install and with its 120-volt power cord powering the internal exhaust fan and digital display.
  • For indoor installation with safe, efficient power ventilation. Stainless vent pipe included.
  • It delivers up to 3.18 Gallons Per Minute of hot water ranging from 95-149 degrees Fahrenheit(35-65 degress Celsius).
  • The ideal water pressure operating range for the Camplux CA318 is 3.6~145.0 PSI, work easily with great performance.
  • The operating natrual gas pressure is 0.4PSI with maximum power output 82,000btu/hour.
  • It only generates about 42 watts and 0.35 amps during operation, making it an ideal energy efficient appliance.
  • Flame failure device, anti-freezing protection and oxygen depletion safety shutoff protection.
  • The camplux tankless propane water heater line was not recommend for elevation above 2000 ft.

Bullet Points of Camplux 3.18 GPM Natural Gas Water Heater

  • Trendy design with black tempered glass front panel featuring easy to use LED display controls.
  • Safe electronic ignition system,anti-freezing protection,flame failure device and dry combustion protection.
  • With 3.18 GPM of output hot water ranging from 95-149 degrees Fahrenheit(35-65 degrees Celsius).
  • Fully automatic temperature controls, equipped with child locking technology
  • True 1/2 inch NPT water fittings. Comes with a horizontal stainless steel vent pipe.

Enjoying Endless Hot Water with Camplux 3.18 GPM Natural Gas Water Heater

The Camplux 3.18 GPM natural water heater has a new revolutionary design, making it as the most unique tankless water heater on the market. This model features sleek black tempered glass panel, fully automatic temperature controls for precision, and a touch screen with an LED temperature display that shows output temperature and GPM flow.It equipped with child locking technology,it’s perfect for whole house use, apartment and small homes where you need more than one hot water application at the same time. Camplux water heater with innovative combustion technology and advanced multiple protection systems to ensure your safety.

New Design,Fully Automatic Temperature Controls.

Comes with new revolutionary design, making it as the most unique tankless water heater on the market. Black tempered glass casing with automatic temperature controls and a touch screen with an LED digital display that shows the output temperature reading.

Instructions for the Installation

Equipped with a horizontal stainless steel vent kit, ready to install and with its 110-volt UL listed power cord powering the internal exhaust fan and digital display. It pulls about 42 watts while idle and 0.35 Amps during operation, making it an ideal energy efficient appliance.

Comes with Approved Fittings&Adapters

Comes with approved fittings&adapters. Camplux water heater is with innovative combustion technology and advanced multiple protection systems to ensure your safety.

Honeywell WT8840B1000 Water Heater Gas Control Valve, NAT 160 Degree F 1" Cavity

Honeywell Home

Based on 739 reviews Check latest price

Product description

The Wt8840 Series Is The Water Heater Control For Trade Use to replace WV8840 valves on AO Smith water Heaters. It Is Designed For Use In Standing Pilot Applications Using An Immersion Well For Water Temperature Sensing. Made in United States. Manufactured by Honeywell.

User questions & answers

Question: Will this replace the wv8860c
Answer: Short answer is difficult to tell. I ordered this valve as a replacement for our hot water heater. Was unable to get any support from Honeywell as to compatibility with existing. Threads were reverse from existing, spent $30 cutting off and replacing burner fitting, and unit still would not work. I was unable to return the unit as it had been fitted on the hot water heater to test it. It may well work for you but be sure that you can return it if it does not.
Question: How many millivolts does this require
Answer: 750 millivolts this control works with a thermopile not a thermocouple
Question: will this replace the wv8840c
Answer: THis is the model I need to replace, what did you find out??
Question: Will this replace a wv8840b
Answer: Yes still working perfectly .

EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology,White

EcoSmart

Based on 3 reviews Check latest price

Product description

Configured for cold climates or high flow rates. Well suited where incoming water temperature can drop below 45 F. For use in more demanding water usage applications. Self modulating flow sensor technology regulates the amount of energy required to heat the water needed. Digital temperature display showing the outlet water temperature setting. Uses 9 KW standard Emerson electric heating elements with brass tops to prevent electrolysis. Copper heat exchanger. Automatic resettable thermostat. 40 DP breakers required. 112A draw. Required wire: 3 sets 8 AWG. Pipe fitting: 3/4'' NPT. Energy efficiency: 99.8%. UL and CSA certified.Weight: 11 lb. Lifetime warranty. It can provide between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature.

From the Manufacturer

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature can reach as low as 37 degrees. The ECO 27 is capable of heating nearly 3 gallons per minute at this temperature. The ECO 27 is the largest electric tankless water heater available with Patented Self Modulating Technology. This model is well-suited for homes in the northern U.S., Canada, and in the southern U.S. for large Roman-style or Jacuzzi tubs that generally have more demanding water usage needs. Digital temperature control allows you to set your temperature in increments of 1 degree. Prior to purchase and installation please verify that this model is the right size for your hot water needs and electrical requirements.

  • Savings of up to 50% on water heating costs. Dimensions :17H x 17W x 3.625D inches ;Pipes fittings :3/4 inch NPT
  • Digital temperature control in 1-degree increments allows control of hot water; Activation Flow: 0.3 GPM
  • Copper and stainless components designed for efficiency, durability and easy replacement.
  • Compact size saves valuable storage space, while the stylish and advanced design is pleasing to the eye and Copper and stainless components designed for efficiency, durability and easy replacement.
  • Prior to purchase & installation, please verify that this model is the right size for your hot water needs and electrical requirements. Electrical requirements: 27 kW, 240 volts, 40 required breakers, 112.5 maximum power (AMP), 8 required wire.Amperage Draw:113 A
  • Required Breaker Quantity: Three 40 Amp Double Pole
  • Recommended Electrical Panel: 200 Amps

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: In order to have a 208 volt power you would need to be pulling off of 2 legs of a 3 phase service. Are you sure you have 3 phase?
Question: Can this unit supply a 3,700 sq foot home with 3 1/2 baths
Answer: Approx 7x11. The cover is approx 8x12
Question: What is the power consumption of this tank-less heater
Answer: This is a 240V/208V heater. At 240V this heater draws 6.25 amps.
Question: remote
Answer: Are you asking if it can be wired 208 volt? The answer is yes. I don't have any experience with model you are referring to otherwise.

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.

Tengchang 16L Natural Gas Hot Water Heater 4.2GPM Tankless Digital Constant TEMP Boiler with Exhaust Pipe

Based on 22 reviews Check latest price

Product description

This electric water heater features instant heating, tankless and constant temperature control. With protection against dry heating and over-temperature protection. It is safe, energy-saving and long lifespan, providing you and your families more comfortable bathing experience.



Feature:

Instant heating, no more waiting for hot water, especially suitable for big families.

High-precision thermostat ensures constant temperature and avoids danger of overheating.

Low water pressure to start, users of higher floors can enjoy pleasant experience of shower.

Large LED screen shows temperature clearly, touch button for easy operation.

Safe and long lifespan, automatic power-off when water is off and over-temperature protection.



Attention:

We have adapters which can convert G thread connector to NPT connector (not include in the list), if you need, please contact us. *Do not install the water heater and the exhaust pipe near any flammable or explosive items.



Specifications:



Condition: 100% Brand New

Material: Plastic + Metal

Exhaust temperature:Maximum 392°F

Heating Material: nickel-chromium alloy liner

Color: Gold

Rated Voltage: AC 110V / 60Hz

Rated Heat Input Power: 32kW

Rated Hot Water Output: 16L/min

Electrical Rating: 36W

Gas Pressure: 2000Pa

Rated water pressure: 0.02-0.8Mpa

Gas pipe: G 1/2''

Water Inlet: G1/2''

Water Outlet: G1/2''

Waterproof rating: IPX4

Support thermostat: Yes

Style: Vertical

Over temperature protection: Yes, over temperature and automatic shutdown

Power protection: Yes, automatic shutdown when water is turned off

Temperature difference: ±0.5 °C

Warranty: 3 years for parts

Certification: ISO 9001:2000



Package List:

1 x Instant Water Heater

1 x English Manual

  • This electric water heater features instant heating, tankless and constant temperature control. With protection against dry heating and over-temperature protection. It is safe, energy-saving and long lifespan, providing you and your families more comfortable bathing experience.
  • Material: Plastic + Metal Exhaust temperature:Maximum 392°F Heating Material: nickel-chromium alloy liner
  • Rated Voltage: AC 110V / 60Hz Rated Heat Input Power: 32kW Rated Hot Water Output: 16L/min Electrical Rating: 36W
  • Gas Pressure: 2000Pa Rated water pressure: 0.02-0.8Mpa Gas pipe: G 1/2'' Water Inlet: G1/2'' Water Outlet: G1/2''
  • Waterproof rating: IPX4 Support thermostat: Yes Style: Vertical

User questions & answers

Question: How di i find installation instructions
Answer: Should be in box
Question: What is the 20 minute off self timer do
Answer: Don’t know this answer
Question: What temperature range can this produce? Is 25C max
Answer: I tested the 16L unit today and here is the result. Given: incoming cold water was 18C, Unit set-point was 60C. The first number is the water flow rate in liters/min. and second number is the maximum temperature achieved in Centigrade. 8 lpm = 60 C, 9= 56, 10=50, 11= 49, 12=47, 13=45, 14=43, 15=43, 16=41. So the unit could achieve the set-point of 60C only at the lower flow rate of 8 liters per minute.
Question: Can this unit be used indoors
Answer: Absolutely! I replaced my 50 gallon water heater with this and love it! It’s mounted on my basement wall, just be sure to vent it properly!!!

Campworld Low Pressure Startup,Overheating Protection,1.58GPM/6L LPG Portable Propane Gas Hot Water Heater,Digital Display With Shower Head.Lightweight for RV,Outdoor Camping

Based on 4 reviews Check latest price

Product description

Specification:

Gas Pressure: 2800Pa

Heat Output Power (kW): 16 KW

Hot Water Output (△T=25℃): 6 L/min

Use Gas Type: Liquefied Petroleum Gas (LPG)

Gas Pipeline Spec: G thread 1/2" Steel Tube

Gas Pipeline:20mm/0.79" rubber gas hose (Outer diameter)

Suitble Water Pressure: Min.0.02MPa.Max.0.8MPa, Starting Pressure: 0.015MPa



Water Pipeline Spec:

Cold Water Pipeline : Short Pipeline equipped or G thread 1/2" Steel Tube

Warm Water Pipeline : Long Pipeline equipped or G thread 1/2" Steel Tube



Exhaust Way:Flue Exhaust Type

Discharge Ways:Flue automatic gas discharge

Fire Catching Ways:Electricity pulse automatic Fire Catching

Automatic electric ignition powered by two qualified D batteries

Ignition Mode:Automatic electrical pulse ignition. (No batteries included)

Smoke Exhaust Pipe Output Diameter: 90mm/3.54" (Not included smoke exhaust pipe)



Feature:

Controller design

High efficient energy saving

Low water-pressure startup

Manifold auto protection

Anti-freezing protection function

Magnificent thin-shaped appearance

Over water pressure protection function

20-Minute Timer (must equipped according to regulations)

Over heat Protection:Over 75 °C will automatically turn off



Package Included:

1x Gas Water Heater Main Body

1x Shower Kit

1x English User Manual



Please notice:

Exhaust Pipe is NOT included

No batteries included

  • Heater safety performance:Camptemp tankless water heater, safe as per Canadian and US Standard. Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. Automatically decrease water pressure between 2.5-110PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. High water temperature protection over 167 °F. Shut off gas supply automatically under unexpectable flameout.
  • Temperature parameter: Maximum power output 41,000BTU/Hr.normal temperature 5℃±75℃ (176°F±41°F) The temperature will change with the water temperature and altitude. The water heater is not suitable for high altitude areas and strong wind conditions above 3300 feet.
  • On Demand Hot Water:Compact and light weight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise. You will save more when you use our tankless water heater.
  • Convenient installation mode: It only takes you a few minutes to install it. You can install it according to the instructions. Compact size and lightweight Portable design for easily carry. Hang it using the mounting bracket on the top of the gas water heater. The water heater should be installed vertically
  • Scenes to be used:Campsites, cabins, or simply around the house. Wash your car, Wash your boat, take a hot shower, wash the dogs or the horse,RV Cabin Barn Camping.

Camplux Pro Residential Tankless Water Heater Natural Gas,5.28 GPM High Efficiency Instant Natural Gas Water Heater,Constant Hot Water Heater for 3-4 Persons Whole Home,Outdoor Installation,White

Based on 15 reviews Check latest price
  • On-Demand Tankless Water Heater-Camplux advanced 5.28 GPM high efficiency flow control natural gas tankless water heater delivers 5.28 gallons per minute of on-demand endless hot water to suit medium- and smaller-sized homes. Automatically activates on water pressure between 7.0-150 PSI.
  • Constant & Sustainable Hot Water Solution -CSA certified balanced combustion design ,features with over-high wind pressure safety protection,Ipx4 water resistant protection, over-loaded electric protection,fan failure protection, equipped with PCB start up self-test &real-time intelligent monitoring, timely warning of potential gas fire and hydro power to ensure your family's safety.
  • Affordable & Efficient Savings -PCB frequency conversion intelligent control, temperature intelligent adjustment, environmental protection and durability, truly outstanding energy saving. Man-machine dialogue, heating without waiting. This residential constant model saves time, money and energy while producing safe, endless hot water for whole home at an affordable rate.
  • High Thermal Efficiency & High-Rise Wind Resistance-Phosphorus deoxidized copper heat exchanger with high temperature and corrosion resistance technology for full combustion and high thermal efficiency up to 92% . It can resist grade 8 wind speed and 240Pa high anti-wind pressure. Additionally, a wind pressure sensor is added to perceive the external wind force in real time and automatically adjust the fan, flame and maintain stable combustion.
  • Considerate Customer Service -Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.

User questions & answers

Question: Can this be mounted in an attic
Answer: Hi ,yes this unit can be mounted in an attic. Here are the dimensions : 27.5 x 16.5 x 9 inches ,please measure the dimension from your attic before you order.
Question: What is the btu of this unit
Answer: Hi ,the max BTU is 150,000 and the min BTU is 24,000 per/hour.
Question: How many amps of current does this unit pull from the power plug
Answer: not even 1 amp
Question: does it need filters
Answer: No filter needed.

Product features

Features-

  • The Camplux WA528 produces comfortable instant & constant endless hot water for residential whole families use!
  • Features PCB frequency conversion intelligent control, temperature intelligent adjustment ensures comfortable constant hot water.
  • Features CO multiple protection ensures safety, equipped with PCB start up self-test &real-time intelligent monitoring, timely warning of potential gas fire and hydro power to ensure your family's safety.
  • Automatically activates on water pressure between 7.0-150 PSI, maximum power output 150,000Btu/Hr. Hot water output 5.28 gallons per minute, perfect for a hot shower for whole home!
  • The Camplux tankless gas water heaters are not recommened to use for elavation above 2000 feet / 600 meters.

Camplux 5.28 GPM Residential Tankless Water Heater

  • Powered by 120 VAC voltage, features imported PCB with precise temperature control.
  • Safe electronic ignition system,anti-freezing protection,flame failure device and dry combustion protection.
  • Automatically activates on water pressure between 7.0-150 PSI.
  • CSA certified balanced combustion design required air combustion.
  • PCB frequency conversion intelligent control ensures smart& energy saving.

Enjoying Comfortable Constant Hot Shower with Camplux 5.28 GPM Tankless Water Heater

The 5.28 GPM Camplux residential tankless water heater supplys on-demand comfortable constant hot water for residential whole home use. It is powered by 120 VAC voltage, has an imported PCB, precise temperature control, double adjustment of water and air, and rising of the third gear making it perfect for constance hot shower at home! The ideal operating range for the 5.28 GPM Camplux residential tankless water heater is 7.0-150 PSI. Camplux tankless water heater focus on phosphorus deoxidized copper heat exchanger with high temperature and corrosion resistance technology and advanced multiple protection systems to ensure your safety.

Compact & Wall Mounted Design

Compact design allows for installation in non-traditional spaces such as the attic, crawl space or even a closet.Save valuable space for attic small suite, your hot water heater doesn't have to be a behemoth!

Constant & Sustainable Hot Water

CSA certified balanced combustion design,features with over-high wind pressure safety protection,Ipx4 water resistant protection, over-loaded electric protection,fan failure protection.

Affordable & Efficient Savings

PCB frequency conversion intelligent control, temperature intelligent adjustment.This residential constant model saves time, money and energy while producing safe, endless hot water for whole home at an affordable rate.

TC-Home 4.8GPM 18L Tankless LPG Liquid Propane Gas Hot Water Heater 36kw House Instant

Based on 64 reviews Check latest price

Product description

Attention:

We have adapters which can convert G thread connector to NPT connector (not include in the list)

Water & gas combination unit ,Fitted with over heating and pressure safeguard

Suitable for both summer and winter

Mains power not required

Electrical requirement: DC3V, Automatic electric ignition powered by two size 'D' batteries (batteries not included); No electrical hook up; No standing pilot;

Description:

1. High efficient energy saving : the heater exchanger and main burner adopt mostly advanced energy-saving and

combustion technology to decrease gas consumption and burning noise.

2. Low water-pressured startup : the water control linkage valve makes the heater start up under low water pressure

and shortage areas and those living in high stairs.

3. Manifold auto protection : for the sake of your safety

4. Ion flame inspection : to automatically shut down gas power under unexpected flameout.

5. Over water pressure protection function : to automatically decrease pressure under excessive high water pressure.

6. Controller design : both cold water and warm water can be properly controlled

7. Magnificent thin-shaped appearance : it is designed by modern fashionable line shape.





Please confirm enough water pressure and gas pressure before using

  • Gas Type: LPG Liquid Petroleum Gas (PROPANE),Capacity: 18L/min (4.8Gal), 25 degrees warm water producing rate
  • Working temperature:--8-45℃,Thermal input: 36KW,Thermal efficiency:≥80%,Vent Type:4.3" Flue Duct,Panel Color: White
  • Temperature rise: 25℃,Minimum working water pressure: 0.025MPa,Gas pressure: 2800Pa
  • Gas pipe: G 1/2"; Water Inlet: G1/2'' ; Water Outlet: G1/2''; Cover Material: Cold Rolled Sheet;
  • Automatic ignition system, Flame failure protection device,20 min. off self-timer,Gross weight: 8.5KG

User questions & answers

Question: How hot does the water get
Answer: The water gets too hot to shower. Need to turn on cold water with hot . It takes some doing to get the 2 adjustments right but after you get it it works good
Question: can this water heater work at 8500 ft. above sea leveal
Answer: If your gas grill works,,then this should too.
Question: What gas regulator does it need
Answer: The regulator can be from the tank that it is hooked up to, so I would guess the standard regulator.
Question: Can you lay the hot water heater down or does it have to hanging
Answer: I think you have to hang it for the exhaust to flow out properly

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

EcoSmart

Based on 2 reviews Check latest price

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.

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