12 best watts tankless hot 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

The Watts Hot Water Recirculating Pump provides hot water at every faucet or shower when needed, eliminating wasted water and saving up to 15,000 gallons per year. It is easy to install on any water system and requires no additional piping. The unique design of the pump ensures quiet, maintenance-free operation. The system includes a built-in 24 hour, a dual setting programmable timer to activate the pump only when needed. Please note this will not work with a tankless water heater.

From the Manufacturer

The Watts Premier hot water recirculation pump puts hot water at every tap when you want it. Saves up to 15,000 gallons per year. The pump brings convenience and savings to your home, giving you hot water instantly at every faucet, when you need it. This unique product is easy to install and not only provides you with the convenience of hot water when you need it, but saves an average of over 11,000 gallons per year. *May not work with a tankless water heater.

• Kit includes a pump with timer with 10' cord, 2 adapters with rubber washers, valve mounting screws, sensor valve, and two 12-inch supply lines
• Voltage: 120 volts, Item Weight: 8.5 pounds. Overall Dimension: 6.2 x 6 x 5 inches
• Provides hot water at every faucet or shower when needed and helps eliminate wasted water
• Easily installs to existing plumbing and is maintenance-free
• 24-hour programmable timer activates pump when you need it

User questions & answers

Question:	How many amps is the pump
Answer:	The pump runs at .22 Amps, and recommended supply current of 2.5 Amps. A standard 15 Amp wall socket is all that you need to plug it into. The .22 Amps the pump indicates maximum start up current, actual running current will be somewhat lower. Inrush current is always higher, when the motor has to start up, actual running current will be lower, example a 1 HP motor will have an inrush current of about 34 Amps, just until the motor reaching normal operating speed then it drops down to around 7.5 Amps, quite a bit lower, but the breaker needs to be able to handle the inrush currents.
Question:	can i used without the sensor valve
Answer:	Yes.As long as you have a return line running back to your water heater. You do not need a separate return line at every faucet. You need one return line. Follow your hot water pipe to the end (last branch takeoff), cut in a tee and run pex or copper. At the bottom of your tank style water heater there is a small, usually plastic valve. Remove that valve and screw in a 3/4" brass or stainless pipe nipple. Then install a tee inline with side outlet looking up and in the end of the tee put a brass drain valve to replace the crappy plastic one if applicable. The side connection on the tee you installed is where you will connect your return line you just ran. I did not notice if this pump had a built in check valve but if not you may want one to prevent water from flowing through both the hot water main and the hot water return to the faucet nearest the end. Water will follow the path of least resistance so the last branch on the main usually ends up being similar in distance to the water heater from either line. As a result water can back feed up the return line and will bring the cold water entering the tank with it. This is especially true when a second source of hot water is being used at the same time hence the need for a check valve.
Question:	If the pump is on, and the water is hot, the sensor valve closes, right? Isn't the pump trying to push water against a totally closed line
Answer:	This type of pump is designed to operate with zero flow, and it actually uses a little less electricity when it is not moving water. When the sensor valve closes, the pump does not move any water. When the sensor valve reopens, the pump moves water from the hot water line into the cold water line.
Question:	So what this does is move the hot water through the pipes constantly, not just when you need it? Seems like an energy suck. Is it
Answer:	If you run this all the time you will likely increase your water heating costs significantly as you are turning your pipes into a big radiant heater. You can use the built in timer to only have it come on at set periods, but this will only work if you have a very fixed schedule. I attacked this another way. I plugged the unit into a TP-Link HS110 Smart plug that is Alexa controlled. I can just say turn on hot water pump or turn off hot water pump when I want to control it. But that was not good enough for me. I found that if this pump ran for four minutes it would give me hot water at the distant shower that I wanted, so I did the following. I wrote a routine to turn on the pump, wait four minutes and then turn it off. While I can run this by voice, I bought the new Amazon Alexa Button, they are about $14 for a two pack. The button is battery operated and communicates to another Alexa device. Just before I take a shower I push the button and within four minutes the water will be hot without having to run water.

Product features

Includes Everything Needed

Pump with timer and 10 ft. electric cord, two adapters with rubber washers, valve mounting screws, sensor valve, two 12 in. supply lines

Easy Installation

Easy to install, usually less than one hour.

Save Money

Save money, up to 10% of your water bill annually.

Product description

This lead free tankless service valve kit is designed to simplify the installation, maintenance and operation of tankless water heaters. This 3/4 inch tankless hot and cold water heater valve set with female thread connection and no spring check facilitates isolation of the water heater from the water lines, water heating purging and draining. It replaces up to 18 fittings and 16 connections used in typical tankless water heater installations. It features a lead free copper silicon alloy body, full-port quarter-turn ball valve with color-coded T-handle, virgin PTFE seats, purge and drain valve with a hose connection and tethered brass cap, FPT union connection to water heater and FPT connection to waterline. The pressure rating is 600 psi (41. 4 bar) WOG. Features: Replaces up to 18 fittings and 16 connections used in typical tankless water heater installation Optional pressure relief and check valve Simplifies the installation, maintenance, and operation of tankless water heaters Hot and cold valves certified to NSF/ANSI 61From the Manufacturer: Designed to simplify the installation and maintenance of tankless water heaters, the Watts Series THW Tankless water heater valves replace up to 18 fittings and 16 connectors used in typical tankless water heater installations. Available in two valve sets for both hot and cold water with 3/4-inch female threaded union brass fittings.

From the Manufacturer

This Watts Series THW Tankless water heater valves are designed to simplify the installation and maintenance of tankless water heaters They replace up to 18 fittings and 16 connectors used in typical tankless water heater installations Available in two valve sets for both hot and cold water with 3/4-inch female threaded union brass fittings

• TANKLESS WATER HEATER VALVE KIT: Watts LFTWH-FT-HCN service valve kit for tankless water heater valves simplify the installation, maintenance and operation of tankless water heaters.
• SERVICE VALVE KIT FOR TANKLESS WATER HEATER: The tankless water heater service valve kit replaces up to 18 fittings and 16 connections used in typical tankless water heater installations, color-coded tee handle. Optional pressure relief and check valve.
• MULTIPLE CONNECTION VALVE KIT: They are available in two valve sets or as a single valve with female threaded, union or quick-connect end options. The service valve kits are available with or without a relief valve. Facilitate service and maintenance with cold water inlet and hot water outlet valves certified to NSF/ANSI 61.
• LEAD FREE VALVE KIT: The wetted surface of our Lead Free products contacted by consumable water contain less than one quarter of one percent (0.25 percent) of lead by weight.
• WATER SERVICE VALVE KIT: Purge/drain ports allow regular cleaning to remove scale build-up. The kit includes LF4L - Lead free poppet type pressure relief valves for protection against excessive pressure and LFTWH - Lead Free Tankless Water Heater Valves.

User questions & answers

Question:	What type of fittings are on the inlet and outlet side of the unit
Answer:	standard 3/4 pipe your choose of copper,pvc,. etc
Question:	Is the drain valve threaded outlet 3/4 or 1/2 inch
Answer:	if it says it is a 3/4" Service Valve Kit - all fittings are 3/4"...
Question:	how do i stop it from leaking at union
Answer:	Have you tried plumbers tape? Sometimes you have to wrap the plumbers tape around the threading several times to get a good seal.
Question:	Inline filter for a Tempra tankless water heater
Answer:	Not sure you need a inline filter, you can get a kit to flush your tankless once a year , with vingar or they sell cleaner made for them. It's two shut off valves on the in and out of unit , also nice to have if you need to have work done on unit .

Product features

Service Valve Kit

Replaces up to 18 fittings and 16 connections used in typical tankless water heater installations, color-coded tee handle.

3/4" Valve Set

This 3/4 inch tankless hot and cold water heater valve set with female thread connection and no spring check facilitates isolation of the water heater from the water lines, water heating purging and draining.

Pressure Rating

The pressure rating is 600 psi.

Product description

Operating Parameters: Maximum Fluid Temperature: 150 degrees F (66 degrees C). Min. Fluid temperature: 36 degrees F (2 degrees C). Maximum working pressure: 145 PSI.

• CONTENTS: Includes a sensor valve, two 12 in. supply lines with fittings, and two mounting screws
• SPECIFICATIONS: 1/2 inch MPT connections on the Sensor Valve, 12 inch supply lines with 1/2 inch FPT x 3/8 inch FPT connections, and the adapter fittings with 1/2 inch FPT to 3/8 inch MPT
• COMPATIBILITY: The 0955801 Sensor Valve Kit ONLY works in conjunction with Watts Instant Hot Water Recirculating System. It is not designed to be used with a dedicated return line to the water heater
• EASY INSTALLATION: Easy to install with no additional pumps needed. Additional sensor valve for branched hot water lines
• This kit must be used in conjunction with either a 500800 or 500805 Hot water Recirculating Pump. It is NOT designed to be used with a dedicated return line to the water heater

User questions & answers

Question:	will this valve work as an additional valve for a Grundfos 59896288P1 hot water recirculation pump
Answer:	It will work with any recirculating pump.
Question:	Does this valve open and allow warm/hot water to flow to the cold water side when a cold water tap in another part of the house is turned on? I
Answer:	There is slightly increased pressure on the hot line, which pushes water through the hot line and through the crossover valve when it is open, to let the hot line reach temperature at the valve. When a cold faucet is opened, most of the pressure is on the incoming side and that's where the water will come from. At first the cold line will have some of the warm returning water that was circulating through the valve, but very little will come from the downstream side where the valve is. One problem to be aware of is when using a shower head shut-off to soap up or whatever. Because the hot and cold are both open at the mixing valve the slightly higher pressure hot water will travel up the cold line and when the shower head is turned back on you will get hot water from both the hot and cold lines until the cold water gets back down the line to the shower head. It can be dangerously hot, and turning the faucet to cold will hot help until the cold water reaches the faucet. This can be alleviated by turning water off at the faucet instead of at the shower head, leaving a partial flow rather than completely shutting the shower head off, or manually shutting off the pump before showering. But the product should include a warning about shutting off a mixed temperature flow anywhere past the mixing valve.
Question:	Does this shut down the flow completely once temperature is reached or will it continue to trickle water into the cold water line
Answer:	The valve allows a slow flow of water back through the cold water line, enough to maintain the temperature at the faucet at about 100°F. If you let the hot water run, the temperature at the faucet goes over 100°F, and the valve shuts off the back flow through the cold water line. After the faucet is shut off, the water in the valve will cool to below 100°F, and the valve will crack open and allow some flow to keep the water warm. The valve does not bang open and shut. It opens more or less, as needed to keep the water warm at the faucet. It doesn't depend on the temperature set at the water heater, except that if the water is very hot, obviously it takes less to keep the water warm at the faucet. The valve accomplishes this automatically.
Question:	How many years will a recirculating water pump last
Answer:	The pump itself I've probably had for 10 years. I've replaced one of the valves in our master bath.

Product features

Works Seamlessly

The Watts Premier 0955801 Sensor Valve Kit for Watts Hot Water Recirculating Pump comes with a sensor valve, two 12 inch supply lines with fittings and two mounting screws. Simple to install, you will not require additional pumps for your hot water line.

Great to get Hot Water to the Furthest Fixture

Made with top quality materials, this Watts Premier 0955801 Sensor Valve Kit for Watts Hot Water Recirculating Pump serves the purpose when installed accurately.

Product description

3/4 IPS LEAD FREE ISOLATOR EXP E2 w/LEAD FREE PRESSURE RELIEF VALVE TANKLESS WATER HEATER SERVICE VALVES - HOT & COLD SET - FULL PORT BRASS BALL VALVES w/ADJUSTABLE PACKING GLAND, HI-FLOW HOSE DRAINS (500 WOG) & PRESSURE RELIEF VALVE (150 PSI/200K BTU)

From the Manufacturer

Hot and cold set of full port forged brass ball valves with hi-flow hose drains and pressure relief valve outlet.

• Lead Free - Meets all federal & state standards for lead levels in drinking water system components.
• Size is 3/4in
• Tankless Water Heater Service Valves
• 1 per carton - 10 per case - Individually Priced & Sold
• Includes a residential pressure relief valve (150 PSI/200,000 BTU)
• 500 WOG
• 4444 series - IPS Union x IPS

User questions & answers

Question:	Hi. is this compatible with ecosmart tankless models
Answer:	The box come with controler and water valve kit. It is perfect.
Question:	Will this work with a noritz nrc661-dv-ng tankless water heater? thank you
Answer:	No it should NOT be installed in a garage. That is considered indoors. An outdoor model needs to be mounted outside to exhaust.
Question:	Hi, the valve kit needs Male NPT thread at both ends, is it right ? Thanks
Answer:	I do not believe so because they are different model numbers.
Question:	What is the difference between this one and RTG20220AB? Can I buy this instead of RTG20220AB
Answer:	I do not have recirculation setup yet. I believe this unit comes with the control functionality for recirculating but that you still need to install your own pump inline with the return water line.

Product description

Watts LFTWH-UT-HC-RV Tankless Water Heater Valve Set with Relief Valve is designed to simplify the installation, maintenance, and operation of tankless water heaters. This economical valve set provides all necessary valves and fittings required for typical tankless water heater installations and facilitates easier water heating, purging, and draining. It includes a hot and cold valve set with spring check valve, a pressure relief valve set at 150 psi, full port quarter turn ball valve, 3/4 in. union connection to the water heater, and 3/4 in. union with threaded tailpieces for connection to the plumbing line. Lead Free* construction to comply with Lead Free* installation requirements. The pressure rating is 600 psi.

• Simplifies installation and operation of gas or electric tankless water heaters
• Lead Free* copper silicon alloy body
• Color-coded ball valves
• Quarter-turn purge and drain valve
• Easy to install

Product description

WATTS WATER TECHNOLOGIES GIDDS-1030401 Potable Water Expansion Tank, Model #Plt-5, Stainless Steel Nipple, 2.1 Gallon, Lead Free

• This product is highly durable
• This product adds a great value
• This product is manufactured in United states

User questions & answers

Question:	Rv parks pressure varies. have my incoming pressure set at 40psi. but when using the pump, it comes on at 35psi, & off at 60psi. is this a fit 4 us
Answer:	May be helpful, but the pump run pressure range of 15psi is probably normal
Question:	What is the connection size
Answer:	The fitting connection is 3/4" NPT threads.
Question:	if this tank comes recharged at 20 psi can I add air too it if needed? the watts I have now is recharged at 40 but is bad now
Answer:	Yes air can be added. There is a valve stem at the bottom of the tank. As I recall, I brought the pressure up to 40 lbs. I checked out their website to see what I use for my well pump switch that runs 40 to 60 lbs.
Question:	This tank will be used on an rv, do any of the tank suppliers offer either a wall mount or cradle type floor mount for the heavier tanks? thanks, ray
Answer:	Hi Ray, I purchased the same expansion tank, and mounted it on my wall. The bracket I used was called Hydro Claw, by storm king. Its not cheap at about $35 to $40, but it is a well made, heavy duty bracket. Very nice looking install. Even my plumber buddies are very impressed! Highly recomend. Good luck, and stay safe. Jeff H.

Product description

Watts Premier WP367010 Sensor Valve is for use as a replacement Sensor Valve for the Watts Sensor Valve Kit (0955801) or Instant Hot Water Recirculation Pump (0955800). This valve requires the installation of an existing sensor valve and a Watts Instant Hot Water Recirculation Pump, which delivers hot water instantly to faucets and showers. Replace the existing sensor valve with this sensor valve where it is installed at the end of the branched furthest from the water heater in each hot water loop. No additional pumps are needed. This valve is NOT designed to be used with a dedicated return line to the water heater. Supply lines and adapters not included.

• For use as a replacement Sensor Valve for the Watts Sensor Valve Kit or Instant Hot Water Recirculation Pump.
• Requires the installation of an existing sensor valve and a Watts Instant Hot Water Recirculation Pump (Does not include Sensor Valve Components).
• Increases speed of water recirculation
• Easy to install as replacement with no additional components needed
• Do NOT use thread sealant tape or pipe dope on the Sensor Valve threads

User questions & answers

Question:	When we turn the hot water on is this valve suppose to click for a few moments before it goes silent
Answer:	I have not had that happen. If you have had this for a while and have hard water, the valve may need to be cleaned; Cleaning is fairly simple with help from Google. "CLean Watts Valve" That said, if you are getting hot water maybe leave it alone.
Question:	Is the grundfos 595926 a replacement for the watts wpwp367010 sensor
Answer:	Grundfos is our supplier, for the hot water sensor valves. This is the same product, if you look at the photo it will show our Watts logo. I hope this is helpful.
Question:	Can the sensor valve be cleaned
Answer:	I can give an answer of a qualified "yes". I bought the Watts system (pump & valve) in January 2017. In November 2019, so just under three years, the valve stopped working; it stayed closed, and would not open, so whether the pump was running or not, we did not have hot water in a short time as expected. I ordered a replacement valve from Amazon and after it was installed, the system was working again. I wasn't able to figure out how to dismantle the valve as mentioned by another reviewer, and tried CLR briefly but decided to just use vinegar. After I immersed the faulty valve in vinegar (5% acetic acid) for six to eight weeks, I was pleasantly surprised that the original valve had apparently come back to life! Now the valve is open when at room temperature, and is closed after running hot water (105° or so) through it for a few seconds. You can test a valve by plugging the outlet for the hot water tap with your finger and blowing into the "hot" end of the valve. Listen for air to exit the "cold" side of the valve when the valve is cool, no air exiting when the valve has been warmed up. I won't know for sure if this original valve will function until my replacement fails and I reinstall the original valve, but I have reason to be optimistic that I won't have to buy a new valve every two to three years. The valve I purchased from Amazon seems to work exactly as well as the original product. I rate it at four stars to acknowledge that if people have not yet purchased a system, they may want to look for a model that is more robust than the Watts product.
Question:	Scalding water on cold side. Is this a symptom of failure
Answer:	Yes, if the water is scalding, that's not supposed to happen. The valve should maintain the hot water at the faucet at about 100°F, which is comfortably warm, not scalding. Of course, when you let the hot water run, it will get hotter from there. It is true that in normal operation, there will be some warm water in the cold water supply, but cooler than 100°F, not scalding. If you get scalding water in the cold water from the faucet, something is wrong. Could be the valve, could be the installation. If it's worked in the past, then probably the valve has failed. If you just installed it, probably the installation is wrong. Here by "scalding," I mean too hot to put your hand into.

Product description

Watts DET-5-M1 2.1 gallon potable water expansion tank for water heaters is designed to absorb the increased volume of water created when the hot water storage tank is heated and to maintain balanced pressure throughout the potable water supply system. It is a prepressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. These tanks may be used with all types of direct fired water heaters (gas, oil or electric) and hot water storage tanks.

From the Manufacturer

Do you suffer from a short life of water heater, washing machine, or dishwasher. Leaking faucets or running toilets. Banging pipes each time the faucet is turned on. These symptoms are frequently caused by excessive pressure in your water heater system that results from you water heater's regular reheat cycles (Thermal expansion.. Water pressure over 80 psi can damage your water system. Stop these symptoms with a Watts water heater expansion tank.

• Has a 3/4 in. male connection and 2.1 gallon tank volume
• Use with water heaters up to 50 gallons
• Rugged flexible butyl diaphragm ensures long and trouble-free life
• Field adjustable precharge
• In-line and free standing models. Can be used with most standard water heaters and storage tanks

User questions & answers

Question:	Dimensions: 13 x 9.2 x 8.8 inches??? It's a cylinder. What is length and diameter
Answer:	You have to use the vent kit manufactured by rannaias the vent is also the intake ring double walled Our commercial plumbing supply store stocks them in salt lake city have not seen it in Amazon but have not looked specifically either
Question:	what is the thread size on this unit
Answer:	I would only use rinnai exhust piping only.
Question:	I put a 2.1 pres tank in my RV. it works great, in the winter how do I drain the tank, there seems to be a build in check valve in the tank. Tx
Answer:	These units have optional accessories for re-circulation to allow for hot water to be available to the entire house. The options are either the GTK15 (purchased separately) or the MC195T(sold separately).
Question:	I have a watts plt-5 pre charged at 40 will the det replace it
Answer:	This would not work as a radiator as well as a hot water heater. You may need something like the E110CN.

Product description

This 3/4 inch tankless water heater valve is designed to simplify the installation and maintenance of tankless water heaters. It replaces up to 18 fittings and 16 connections used in typical tankless water heater installations.

• Lead free brass construction
• Full port valve
• 3/4 FPT connections
• Valve set with relief valve

Product description

WATTS WATER TECHNOLOGIES GIDDS-1030402 Watts Potable Water Expansion Tank, Model #Plt-12, Stainless Steel Nipple, 4.5 Gallon, Lead Free - 1030402

From the Manufacturer

Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply system. Series PLT tanks feature a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. These tanks may be used with all types of Direct Fired Hot Water Heaters (gas, oil or electric) and hot water storage tanks. IAPMO listed and ANSI/NSF 61 certified. Maximum Pressure: 150psi (10 bar)

• Max pressure: 150
• Max Temp °F: 200
• Made in United states

User questions & answers

Question:	What are the dimensions of tank? And connection dimensions
Answer:	It's around 9" in diameter and about 13" long. Hope that helps!
Question:	What is the difference between these and regular pressure tanks
Answer:	It has a 3/4" pipe thread for the connection to the system.
Question:	Does it come with any parts? Mine arrived without any parts for installation, just tank
Answer:	I have one in my RV also. I put a shutoff valve on the hose that goes to tank. Drain RV water. Shutoff pump and drain all pressure. close shutoff valve to pressure tank. remove pressure tank (keeping valve on hose size). (use sponge because some water may leak.). be sure to let pressure tank drain, than put something over opening of tank to keep mice out during winter. Winterize RV in normal method. Don't forget to drain a little water from the shutoff valve on hose that was attached to pressure tank until antifreeze runs out.
Question:	Can this tank be used horizontal
Answer:	Yes, I believe it should. They are both the same 3/4" male thread and made for the same size potable water systems. I'd google the watts customer service number if you needed to find out for sure. But looking at their specs, the biggest difference between DET and PLT series appears to be the DET is made in the USA, while the PLT is made in Taiwan. There are a few internal design differences and max pressure differences, but nothing a normal homeowner would worry about for residential usage. As far as the psi goes, the pre-charge really means nothing. You should adjust that pressure to match the pressure on the house side of your regulator (cold/resting pressure, ie water heater not running and relieve the overpressure with a quick run of both faucets before testing). Usually should be around 30-50 psi, depending on who you talk to. Which is likely why Watts set it around 40. So check your house pressure and adjust accordingly. You might need to adjust your regulator, but either way make the expansion tank match the house pressure.