13 best condensing hot water heaters

Product description

The NORITZ NRC66DV is a fully condensing tankless water heater with an advanced heat exchanger design and built-in controller. With flow rates up to 6.5 gallons per minute the NRC66DV delivers the highest flow rates in its category and can be vented using 3" Schedule 40/80 PVC, PP or CPVC.  Various adapters and terminations are available to allow for a wide array of venting options.  This unit ships complete with a 6' power cord.  IK-WV-200-1-XX-LF valve kit (required for installation) is sold separately. Common companion items include rain cap (PRC-1), atmospheric conversion kit (SVCK-3) and horizontal termination/intake PVT-HL.

From the Manufacturer

Indoor tankless water heater up to 6.5 gallons per minute. Noritz has been an innovator in the water heating industry for over 60 years. We introduced the first modern, electronically controlled tankless water heater in 1981 and we remain the leader in energy savings and superior hot water delivery today. Our goal is to empower you with the highest quality products available at superior value.

• Endless hot water
• Can be vented with Schedule 40 PVC Pipe and Fitting
• High Efficiency
• Low Nox
• Remote thermostat & 6' power cord included

User questions & answers

Question:	Is the water temperature regularated at the showers' manifold or at the tankless heater
Answer:	Both. The maximum temperature is regulated at the tankless heater. You control the shower temperature the the shower controls by mixing in cold water to the hot
Question:	Any problems installing over a clothes washer?, it's in a garage on an outside wall (10ft high
Answer:	Should be no problem, since it is high efficiency, just vent both directly outside with pvc and a screened downed turned elbow, they are already the proper distance apart for min clearances of each other. Exhaust needs to be min of 8" from window or door.
Question:	What is the ef on this product? looking to get one with 0.90 ef or better. i did see it is energy start
Answer:	1.0
Question:	Is 6.6 gpm adequate for showers
Answer:	Should be more than adequate for multiple simultaneous showers (depends on type of shower head, temperature you like the water, etc.). I often shower while the washing machine is running with no problems. This unit has performed well for us.....hopefully it will be durable as well (in service about 7 Mos so far).

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

With gas inputs of 180,000 BTU, the T-H3S can produce enough hot water for three bathrooms in warmer climates or two baths in colder climates.

From the Manufacturer

With gas inputs of 180,000 BTU, the T-H3S can produce enough hot water for three bathrooms in warmer climates or two baths in colder climates.

• Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
• Computerized safety features, No pilot light to have to worry about
• Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions

User questions & answers

Question:	No warranty
Answer:	The Takagi T-H3S-DV-P will have a full warranty supplied by Takagi. Globaltowne is an Authorized Takagi Distributor.
Question:	Is there a propane burning Takagi for small homes
Answer:	Yes they make smaller units
Question:	Is there a propane burning takagi 10-gallon per minute machine or bigger than 8 gallon
Answer:	You could use the TK-540P-PIH - 199,000 BTU Liquid Propane Indoor Condensing Ultra-Low NOx, this is 199K BTU and does 10 gpm. GLobaltowne is an Authorized Takagi Distributor.

• Condensing Technology - The EZ Ultra HE uses exhaust gas to preheat incoming water for added efficiency.
• This heater can be vented horizontally or vertically using 2" Solid Core Schedule 40 PVC/CPVC
• Back-draft prevention device and stainless steel horizontal vent pipe are included.
• Capacity Up to 3.4 GPM @ 45F Rise In Ambient Temperature
• FREE SHIPPING

User questions & answers

Question:	Does it need to draw 24 watts all day or can you turn off the 24 watt draw? Leaving it on all day would mean 24 watts x 24 hours = 576 watts
Answer:	refer to size of inlet your installing into
Question:	What is the minimum intake water flow rate required to supply the water heater? I am using gravity feed 1500g tanks and solar. Will use 22g lp tank
Answer:	Yes, you can.
Question:	How much current or power, amps or watts, are used when unit is idle
Answer:	Just the outer threads
Question:	does this require electricity to ignite
Answer:	Hi Yun,Check the size fitting that is currently in your water heater. We make three different sizes...1/4" (part #11663), 3/8" (part #11683), and 1/2" (part #11703). Find the one that matches your thread size and you shouldn't have any problems.

Product features

Condensing Water Heaters save more energy and allow for the most flexible installations!

The EZ Ultra condensing tankless water heater is the most versatile water heater we build. With the ability to vent using 2" Sch. 40 PVC, this unit can be installed anywhere with an adequate air supply. The PVC piping and condensation trap allows for vertical venting, horizontal venting, or diagonal venting, just keep the overall length less than 30ft.

Is this Tankless Water Heater right for me?

One of the most common questions we get at EZ Tankless, "Which water heater is best for me?", can be answered by asking yourself a few simple questions.

What gas type do you need?

Can you vent through an exterior wall to the outside or must you go vertical thru the roof?

How many bathrooms in your home?

What gas type do I need?

If your gas is supplied thru a large tank located outside of your home, you are most likely in need of a Propane Gas unit. THIS EXACT UNIT IS DESIGNED FOR USE WITH PROPANE GAS!

If your gas is supplied from an energy company and piped into your home from underground, you are most likely in need of a Natural Gas Unit. For a NATURAL GAS UNIT see the chart below.

Can you vent through an exterior wall to the outside or must you go vertical thru the roof?

The EZ Ultra is a FORCED AIR unit that requires that you mount the heater on an in a room with adequate supply air, most utility rooms should have a slotted door/vent or a supply air vent thru an exterior wall. The EZ Ultra Water Heater includes a stainless steel vent for horizontal venting, but requires the purchase of 2" PVC for VERTICAL VENTING.

For DIRECT VENT INSTALLATIONS (using outside air supply) see the EZ Deluxe Direct Vent unit listed on the chart below.

How many bathrooms in your home?

The EZ Ultra Water Heater is designed for use in up to a 2 bath home.

If a larger size is needed, please check out the EZ SUPREME unit listed on the chart below.

Product description

Next Generation Burner Technology Industry Best! . 26 GPM Minimum Flow Rate, . 40 GPM Minimum Activation Flow Rate UMC-117 remote control and 10 ft. of thermostat wire is included EZ-Lint cable available for high demand applications to connect two thankless units to operate as one Manifold up to 6 units with an optional MIC-6 manifold control board Exclusive! All Rheum models can be linked in up to 20 unit manifold installations by using the optional MIC-180 and MICS-180 manifold control assembly High-altitude capability - up to 9, 840 ft. elevation above sea level (no chip required) Exclusive! Guardian OFWTM overheat film wrap All Rheum thankless models are third-party efficiency certified by GAMA Continuous hot water, energy saving and compact, space saving design Intelligent electronic controls designed to increase energy efficiency and safety Self Diagnostic System Digital display shows temperature setting and maintenance codes.

• Condensing Technology for Greater Efficiency and Significant Energy Savings
• Residential Temperature Settings: 98°F - 140°F
• Manufactured in Mexico

User questions & answers

Question:	what is the gpm output rating for this unit,and at what degree temp rise
Answer:	5.7 gallons at a 40 degree rise based on the energy guide. The documentation on Rheem's website does offer a whole range based on ground water temp. You may have to dig for it through the many guides and the likes they have though.
Question:	Does it come with all the parts needed to use it
Answer:	You still need to order the clean out valve and the center kit
Question:	Does this water heater come with the econet translator and wifi module? it is pictured in description images 4 and
Answer:	No mine didn’t. Needless complication IMO. Available separately at Amazon and Home Depot.

Product description

The NORITZ NRC71OD is a fully condensing outdoor tankless water heater with an advanced heat exchanger design and built-in controller.  With flow rates up to 7.1 gallons per minute the NRC71 delivers the highest flow rates in its category. IK-WV-200-1-XX-LF valve kit (required for installation) is sold separately.  Common companion item is pipe cover shroud, PC-1S

From the Manufacturer

Outdoor condensing tankless water heater up to 7.1 gallons per minute. Noritz has been an innovator in the water heating industry for over 60 years. We introduced the first modern, electronically controlled tankless water heater in 1981 and we remain the leader in energy savings and superior hot water delivery today. Our goal is to empower you with the highest quality products available at superior value.

• Package Dimensions: 25.4 L x 63.5H x42.545W(centimeters)
• Package Weight : 22.226 kilograms
• Country of Origin: China
• Product Type: Plumbing Fixture
• Direct Ignition No Standby Pilot Light. Thermal Fuse Automatic Overheat Protection System

User questions & answers

Question:	Hi, For how many showers is this product
Answer:	You can go on noritz.com and you can get all specs on this unit. This is a great unit. My unit handles 4 showers no problem.. Hope this helps..
Question:	Do I need a remote for this unit
Answer:	No, unless you want to set the water temp lower than the standard 120 degrees (higher temps may be set on the unit).
Question:	how does this unit vent
Answer:	It vents through the slot near the top. This is the exterior model and does not have the duct connection of the interior model.
Question:	Can it be mounted in a 2 car garage, and allowed to vent in there
Answer:	No, but the indoor model has a duct connection to vent exhaust to a safe place (outside).

Product description

The T-H3M supplies hot water to domestic hot water systems (directly or indirectly) which can be used with storage tanks, recirculation systems, hydronic heating systems, radiant floor systems, and/or domestic & heating applications, The T-H3M is a high efficient, condensing thankless water heater perfect for residential applications. With gas inputs of 120,000 BTU, the T-H3M can produce enough hot water for two bathrooms in warmer climates or 1.5 baths in colder climates.

From the Manufacturer

SAFETY FEATURES: Air-Fuel Ratio (AFR) Sensor, Exhaust & Water Temperature Safety Control, Overheat Cut-Off Fuse - INTERNAL FREEZE PROTECTION SYSTEM - POWER DIRECT VENT DESIGN: Exhaust, 3" PVC Venting up to 70 Feet or 4" PVC Venting up to 100 Feet, Provides flexible venting with PVC, CPVC, or ABS Pipe for Intake and Exhaust (solid core only), Category IV Stainless Steel venting can also be used

• Inlet, outlet thermistors for constant temperature monitoring
• Perfect for light residential and radiant heating applications
• Manufactured in Japan

User questions & answers

Question:	Can i connect the pvc vent from this unit to an existing double-walled steel chimney that will be used for nothing else
Answer:	YES
Question:	H2O temperature rise? We have cold ground H2O year round so need 80 degree rise min
Answer:	The Takagi T-H3M will give you a 45 degree temperature rise at 6 gpm. This unit is good for 2 major applications at one time. GlobalTowne is an authorized Takagi distributor.
Question:	What method have people who have installed this used to address the coupling diameter being too large? If seen 1 guy used a lathe to turn it down
Answer:	impossible to use a lathe?? the vents are quite simple using plastic PVC ipe fittings.
Question:	Will this as a stand-alone heat a 1200sqft house with baseboard heat
Answer:	prabably but just go on their website and it will give you the answer for all the different size units

Product description

Next Generation Burner Technology Industry Best! .26 GPM Minimum Flow Rate, .40 GPM Minimum Activation Flow Rate UMC-117 remote control and 10 ft. of thermostat wire is included EZ-Lint cable available for high demand applications to connect two thankless units to operate as one Manifold up to 6 units with an optional MIC-6 manifold control board Exclusive! All Rheum models can be linked in up to 20 unit manifold installations by using the optional MIC-180 and MICS-180 manifold control assembly High-altitude capability - up to 9,840 ft. elevation above sea level (no chip required) Exclusive! Guardian OFWTM overheat film wrap All Rheum thankless models are third-party efficiency certified by GAMA Continuous hot water, energy saving and compact, space saving design Intelligent electronic controls designed to increase energy efficiency and safety Self Diagnostic System Digital display shows temperature setting and maintenance codes.

From the Manufacturer

Next Generation Burner Technology Industry Best! .26 GPM Minimum Flow Rate, .40 GPM Minimum Activation Flow Rate UMC-117 remote control and 10 ft. of thermostat wire is included EZ-LinkTM cable available for high demand applications to connect two tankless units to operate as one Manifold up to 6 units with an optional MIC-6 manifold control board Exclusive! All Rheem models can be linked in up to 20 unit manifold installations by using the optional MIC-180 and MICS-180 manifold control assembly High-altitude capability - up to 9,840 ft. elevation above sea level (no chip required) Exclusive! Guardian OFWTM overheat film wrap All Rheem tankless models are third-party efficiency certified by GAMA Continuous hot water, energy saving and compact, space saving design Intelligent electronic controls designed to increase energy efficiency and safety Self Diagnostic System Digital display shows temperature setting and maintenance codes

• Built-in electric blower Supplied with a 120 volt power cord
• Environmentally friendly Low Knox burner meets SCAQMD rule 1146 requirements
• Freeze protection to -30 Degree F

User questions & answers

Question:	Does this come with exhaust vent
Answer:	It comes with gray fittings on top that will accept 3" pvc in each. If the vent pipe will be less than 5' you can reduce them down to 2" pvc. You have to buy the pipe and any fittings necessary to reach the outside. It did come with a 3/4" gas shutoff valve.
Question:	Is this natural gas product
Answer:	They make them for natural gas and propane. Be sure you select the right one for your gas supply. I just replaced it because I bought a natural gas heater and I have propane and over time it didnt go well.

Product description

American standard water heaters tankless condensing residential water heaters deploy the latest in cutting edge technology. This indoor, wall mounted unit produces up to 11 gallons of hot water per minute. Designed for superior thermal transfer, increased resistance to scale formation and low installation costs. Built with efficiency in mind, these tankless condensing units boast an impressive energy factor of 96 drastically reducing energy costs when compared to a conventional storage tank water heater. With instantaneous hot water and no storage tank, leaky water heaters are a thing of the past! these units come with a 12 year limited heat exchanger warranty and a 5 year limited parts warranty.

• Superior thermal efficiency - with energy conservation in mind, these units maintain an impressive 96% efficiency rating
• Certified - these units hold both ANSI z2.1.10.3/csa 4.3 certifications and are designed for indoor wall mounting
• Durable - both the primary and secondary heat exchangers are constructed of 304 Grade stainless Steel
• Eco friendly - ultra low NOx combustion system compatible for both natural gas and liquid propane. These units are also field convertible from one gas source to another
• Energy Star & ETL certified - uses 14% to 55% less energy than equipment that meets minimum federal standards

User questions & answers

Question:	Can the vent pipe be run horizontally in pvc
Answer:	Weight capacity is 250 lbs.
Question:	Max temp
Answer:	I have only used it for a small child. But it is very sturdy, fills up quickly, and doesn’t lose air over a few nights.
Question:	How do you field convert to propane
Answer:	I am incredibly sensitive to smells, standard scented soaps will give me migraines, as will most petroleum based rubber, which smells like benzene to me. I did not notice any odor from this mattress.
Question:	does it need a high pressure gas line like one of the customer review said
Answer:	This pump takes regular "D" batteries

Product description

Rinnai Ultra Series Tankless Water Heaters deliver innovation and technological leadership in condensing tankless water heating design. Providing homeowners with an endless supply of hot water, energy savings, a space-saving design and environmental benefits, Rinnai now offers faster hot water with the new Ultra Series RUR models Tankless Water Heaters. These new Ultra Series condensing tankless water heater models, RUR98i and RUR98e, feature recirculation (with or without a dedicated recirculation line) provided by thermal bypass technology which includes an integrated pump, internal bypass line and thermal bypass valve which means less wait time for hot water.

• Innovative technology provides an endless supply of hot water
• Recirculation capability, with or without a dedicated recirculation line Innovative technology provides an endless supply of hot water
• Offers both Concentric and PVC, providing more venting options right out of the box
• Rinnai's condensing technology features dual heat exchangers to provide maximum efficiency, up to .96 Energy Factor
• Maximum output, minimum space. About the size of a small suitcase

User questions & answers

Question:	Can this be converted to propane and be an outside unit
Answer:	This is a propane unit, if you want an exterior unit in this model search RUR98EP. E for exterior, P for propane if you are looking at other Rinnai units online.
Question:	The controller only goes to 120 so how does this provide 140 water
Answer:	There is an internal micro switch setting that allows for the temp range to go up to 140 degrees F. See installation guide for details. You can also down load the guide at manufacturer’s US website under support if you don’t have it.
Question:	will i have to buy anything extra to hook the propane up
Answer:	no if you have line already from your propane tank
Question:	Does the rur 98ip unit require a drain line for proper year around operation
Answer:	Yes the unit does require a condensate drain line

• 2 PCs 16” long 1/2”FIP x 1/2”FIP,Stainless steel water hoses ,Vent valve,included
• 【NOTE】The cold water pipe has a safety valve, which is marked with a water pressure of 0.75MPa. When the water pressure in your home is greater than this value, the safety valve will automatically drain. At this point, you only need to contact us, we will send you a 0.9MPa exhaust valve, you can solve this problem
• 【SAFE DURABLE & LONGEVITY】Made of stainless steel and never rust，Anti-leakage plug，Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant，This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
• 【SMART INVERTER FOR ENERGY SAVING】Automatic heat preservation and storage of hot water, 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%，Maximum temperature167℉，The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
• 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design，Easy to control warmth.Vent valve, Tee pipeline， pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
• 【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，8-15 minutes to heat to your desired temperature).
• 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 13.0''L x11.4''W x10.6''H; 9.5lbs; 1/2″NPT NPT. 1.5 kW, 110-220 volts. One-year warranty and 24H customer service support, feel free to contact us.

User questions & answers

Question:	How is it that this is energy efficient if it constantly maintains a heating temperature that you can use on demand? Is there an off/on switch
Answer:	Most rinnai tankless weather it is out door or indoor, have a control board to adjust temp and either on or off
Question:	I connected the water in the water heater already. But the pressure didn’t pumt the water to the sink
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:	Can I connect the water intake on this unit from the hot water supply from my house water heater? The house heater is very far from kitchen sink
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:	Will this work for an outdoor shower
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

BIS 1.5Kw Mini-Tanks Water Heater Electric

Features

Saves Energy and Money - No need to preheat before using,no any waste for water or electricity.

Endless Hot Water - Maintenance-free bare wire heating systems.Depending on the region, the water temperature can be heated to 167℃ within 8-15 minutes.

Space Saving - Very compact designed, which can be wall-hung (bracket included) or floor-mounted，easy to install.

Hot water on call

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 BISELONG: a point-of-use electric mini-tank heater. This heater can supplement a primary water heating source, or be used under a single sink and double sink. In fact, the BISELONG 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.

INSTANTLY HOT WATER

As soon as you open the tap, the water flows with your desired temperature. The water is only heated in the amount and for the time you actually need it.

ENERGY EFFICIENT

It saves energy by producing hot water only when needed. Instant hot water flows out at anytime you need.

KNOB ADJUSTMENT

Equipped with a Knob adjustment control for stable temp. easy and convenient. Just turn the knob to the maximum and submit the temperature suitable for you through the faucet，Optimal energy efficiency is promised.

GREAT FOR SMALL SPACES

Water heaters are compact，It can be installed under the sink features a sleek and attractive design to blend seamlessly with decor, very friendly to any small spaces.

Product description

Rinnai V65EN Outdoor Tankless Hot Water Heater, V65EN-Natural Gas/ 6.3 GPM, Large, White

From the Manufacturer

Rinnai's V65E exterior-mount tankless water heater efficiently delivers up to 6.6-Gallon per minute (GPM) of hot water, making it perfect for your one to two and half bathroom home. This easy-to-install, ultra-compact unit lets you enjoy all the benefits of Rinnai tankless water heating. You'll experience clean, reliable hot water at a consistent pre-set temperature, while saving energy and precious floor space in your home.

• Max BTU's 120,000
• Max Energy Factor 0.82
• Outdoor Installations
• Meets California and Texas NOx Emissions Standards
• Lightweight and Compact

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.

• 【INSTANT & SUFFICIENT HOT WATER】 Applied with 9kW heating system, the electric water heater ECO90 supplies instant, consistent and endless hot water of 116℉or higher temp shortly, no waiting for preheating nor temp fluctuations in use, perfect companion for sink and faucet.
• 【SMART SELF Modulation】The hot water heater ECO90 adjusts power input according to flow rate and temp setting in real time, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 99.8% saves considerable electric charge.
• 【UPGRADED HEATING ELEMENT】The ECO90 hot water heater is applied with micro-computer control and patent heating technology. Water pipe is completely separated from electricity by cast aluminum module, which also guaranttes no"cold water sandwich" and avoids any corrosion inside pipes so as to extend service life.
• 【SAFE AND DURABLE】Applied with multiple protection devices, every unit goes through strict tests to ensure 100% safety. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come.
• 【CONVENIENT USE】The ECO90 tankless water heater comes with digital display & touch control panel so temp setting is easy job. It's space saving, measuring: 15.8″ H x 11.1″ W x 3.1″ D. Plus it has a stylish, modern design that blends in any location. Please verify it is the right size for you: 9kW@240V (not 110V); pipes fittings : 1/2" NPT.

User questions & answers

Question:	Is a pressure relief valve needed for the electric tankless water heater
Answer:	Of course there is a switch
Question:	is the tankless water heater electric suitable for a shower without hot water feeding in
Answer:	Chances are there is a check valve and the lines are connected backwards if pressure is not making it to your sink. Make sure you connected the line into the heater on the right side where the blue cap was. The line out comes out the left where the red cap was on the heater. Do expect some reduction in pressure, but it should not be excessive.
Question:	Will this unit work in a 15 gallon closed loop recirculating system that needs to stay at a constant 100 degrees +/-3 degrees
Answer:	Yes you can connect this unit to the hot water supply line from your existing hot water heater and have hot water delivered to your kitchen sink. This unit will reheat the hot/warm water to the desired temperature. This should ensure you have continued hot water.
Question:	will the electric water heater tankless work under low temp condition
Answer:	If you take a Navy shower, as in turn on water rinse, off while washing self, turn water on to rinse. Would need to be a short shower overall but it could work.

Product features

INNOVATION, OPTIMIZATION, ENERGY-SAVING

With rich experience of 20 years in appliances industry, ECOTOUCH appliances is associated with advanced technology, quality craftsmanship, reliability and attractive features design, which offers brand new life style of being easy, efficient and enthusiastic. We are decicated to innovate and offer user-friendly & energy saving appliances that base on extensive consumer research and follow stringent quality stanards, meeting your requirements at the very best value for your budget.

We offer 1 year QA for the unit and you don't have to worry about any quality issue, the unit is premium quality and we have full confidence on it. If anything unexpected occurs, we get technicians to figure out the issue and offer you the best solution.

Electric Tankles Water Heater for Your Dear Family

Being one of those limited choices with smart modulation heating, ECOTOUCH ECO90 tankless water heater provides instant & endless hot water with optimal thermal efficiency of 99.8% and minimum energy cost, thus, the tankless water heater heats up 1.5GPM water from 67℉ to 106℉ and will sure cut your electric bill.

Designed with sturdy structure, it is a perfect solution for kitchen & bathroom sinks, dishwasher and washing machine and you could use it for shower purpose in southern area.

Instant hot water and endless

As soon as you turn it on, hot water comes out immediately with desired temperature and sufficient flow rate of 1-1.5 gallon per minute, no waiting for preheat or standby energy loss. The best part is you get endless hot water now, 24h service, anytime you need.

Smart modulation and energy saving

Equipped with a smart modulating control for stable temp, the hot water heater adjusts exact power input according to power calculation based on flow rate and temp setting in real time, which means you get still stable temp, instead of scalding hot, when you reduce flow rate. Optimal energy efficiency is promised.

Easy to installation

Wall-mounted design frees up floor space for more storage, easy installation in bathrooms, kitchens. Totally silent operation and no venting is required. It is also ideal for apartments as well as a wide range of business and industrial applications.. you don't to have to hire a plumber even if you can do it.