13 best bosch gas heaters

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.

Product description

120V - requires hard wiring. 1440W element. Magnesium anode rod. Rectangular shape with 2" of foam insulation. Glass lined tank for longer life. 6 year on heater and 1 year on parts for both commercial and residential use. Temperature/pressure relief valve included. Can be mounted both horizontally or vertically. Mounts on floor or wall. Meets ASHRAE 90. 1. See Info Page for technical and installation specifications.

Manufacturer Contact Information

800-283-3787

• CONVENIENT HOT WATER HEATER: 7 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 17.5 W x 17.5 H x 14.5 D Inches
• INSTALLED VERTICALLY OR HORIZONTALLY: This larger model can be mounted vertically (7 gal. of water supply) or horizontally (5.1 gal. of water supply)- vertical orientation is installed with the cold and hot lines on top of the unit
• RELIABLE WATER SOURCE: Easily hard-wire the 7-gallon model to provide the on-demand reliable water source your home or office needs
• IMPORTANT INFORMATION: Heating capacity of 1440 watts and a temperature range of 65-145°F max. Operating pressure-150 psi. Water fittings-3/4 inch Male NPT. Electrical requirements (Amp 12A/Volts 120)
• EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included for vertical orientation only); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

User questions & answers

Question:	What is the recovery time if the 7 gallons of hot water is used
Answer:	I have the 4 gallon tank and it is not too bad for the reheat
Question:	Can I reduce the pipe's size from 3/4 in to 1/2 in without any negative effect on the unit
Answer:	No harm to unit.....Max water flow will be reduced a little.
Question:	Can i use this to replace a small rv hot water heater
Answer:	Yes, but realize that it's electric and draws quite a few amps, most rv water heaters are propane.
Question:	The Manual request for the ES8 a 20 Amp breaker and 12GA wire. The wattage however is 1440 with 12 Amps. Why then 20 Amp breaker and not
Answer:	I would use a 20 amp circuit with 12 ga wire but there are no inrush concerns with a resistive load. A heating element does not have a higher initial current draw like a motor. It draws 1440 watts or 12 amps at 120v. Since 14 ga wire must be fused for 15 amps, this device by itself is already at 80% of the circuit’s capacity.

Product features

Bosch ThermoTechnology

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

Water Where You Need It

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

Quality for Long-Life

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

Great for Small Spaces

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

Minimize Wait Time for Hot Water

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

Product description

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

Manufacturer Contact Information

800-283-3787

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

User questions & answers

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

Product features

Bosch ThermoTechnology

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

Water Where You Need It

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

Quality for Long-Life

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

Great for Small Spaces

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

Minimize Wait Time for Hot Water

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

Product description

The Special Edition Bosch ProTL 199N (equivalent to the Bosch Therm 940 ES NG) Natural Gas Tankless Water Heater represents the industry standard for maintaining a constant flow of heated water at a low cost to you and your family.



Operating on a 199,000 BTU per hour input, this Bosch Natural Gas tankless water heater water boasts a 83+ thermal efficiency rate. Best of all, it is suitable for both indoor and outdoor installations (requires the BTOK outdoor vent kit) and is easily installed on most any platform. Comes with 3/4" gas and water connections on the bottom of the unit.



Are you in the market for a top performing water heater that is easily installed, has a long lasting lifetime and won't rack up your electric bill? The Special Edition Bosch ProTL 199N Natural Gas Tankless Water Heater is also versatile and very compatible with current home systems. Enjoy this unit as a standalone operating system, or join it with solar thermal devices to enjoy recirculation applications.



Built to last, this water heater has a life expectancy of over 20 years, ensuring that your family will enjoy continuous hot water for years to come.

• Bosch Special Edition 199,000 BTU Tankless Water Heater
• 83%+ thermal efficiency
• 8.3 gallons per minute capacity at 35F degree rise
• Electronic ignition and patented burner design
• Vents vertically or horizontally with 3" or 4" stainless steel

User questions & answers

Question:	Where is the item made from
Answer:	The Bosch ProTL 199N (Natural Gas) tankless water heater is manufactured by Bosch and made in their main factory in Portugal. Globaltowne is an Authorized Bosch Distributor.
Question:	Can this be converted to propane
Answer:	Yes, there is a Bosch Therm Gas Conversion Kit (8719002176). Globaltowne is an Authorized Bosch Distributor.

Product description

Our high-efficiency plus RL models, offer Rinnai’s most advanced technology in non-condensing tankless water heaters. You’ll enjoy the endless hot water and energy savings you expect, with the addition of Wi-Fi monitoring and recirculation technology for faster hot water delivery.

From the Manufacturer

With a capacity up to 9.4 gallons per minute (GPM) of hot water, the R94LSe is capable of supplying continuous hot water to as many as five plumbing and appliance outlets simultaneously, ensuring you never run out of hot water. You'll appreciate greater energy efficiency, lower energy costs and the simplicity of exterior installation.

• Endless hot water for your entire home
• RL94eN HE+ High Efficiency Tankless Hot Water Heater - Natural Gas: Outdoor Installation Only
• Up to 9.4 GPM hot water flow rate (varies by groundwater temp)
• Circ-Logic technology allows you to set recirculation patterns that coincide with your typical habits. Hot water is available when you need it!
• Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

User questions & answers

Question:	does it come with isolation valves or do you have to order seperately
Answer:	This model does come with isolation valves. Thanks
Question:	Is warranty void automatically when buying this way? The warranty appears to be void if not purchased by an "authorized dealer
Answer:	MyPlumbingStuff is an "Authorized RINNAI Online Reseller". Warranty is valid when purchased through us.
Question:	Will this item work with propane
Answer:	you would have to change the jets -read the specs-you should be able to order it for either natural gas or propane
Question:	I just purchased a new house that has two of these units and it takes about a minute for water to heat, can that be sped up
Answer:	Hi Jay, Understand that you have cold water in your pipes that has to be pushed through to your open faucet and discharged before the hot water can get to you. Your Rinnai instantly starts heating your water when you open the faucet but there is all that cold water in the way. The closer your faucet is to the unit the sooner you get the hot water. If you are concerned about water waste, use the cold water to start scrubbing your sink or tub and then rinse with the hot water when it purges the cold sitting there. Your Rinnai saves you a ton of money by being on demand so be patient. Brush you teeth in the cold so no waste also. It is a great unit! John and Joanne

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

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.

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

This compact , yet powerful unit - with gas inputs up to 140,000 BTU per hour - can meet all the hot-water needs of a small to medium American home or apartment. Designed to virtually do anything a 40-gallon tank-type water heater can do and much more The Wall mounted Excel Pro is design to work with hydronic baseboard or radiant floor heating applications, as well as provide domestic hot water to plumbing fixtures and appliances. LCD Display Control: Just set the desired water temperature The Excel Pro has an energy factor of 0.84-0.85. Excel Pro: Modulating Technology Tankless water heaters can be further divided into two categories according to their heating capability: "full on/full off" versus "modulating". Full on/full off units do not have a variable power output level; the unit is either fully on or completely off. This can cause an annoying and possibly hazardous variation of hot water temperature, as the flow of water through the heater varies. Modulated tankless water heaters change their heat output in response to the flow rate of water running through the unit. The Excel Pro comes with a display panel where you can set the output temperature and regardless of water flow the unit modulates the fire power. Pure Copper Heat Exchanger * As used by other top of the line tankless gas water heater manufacturers like Rinnai, Takagi, Rheem and Noritz. Features & Benefits Super compact 14.5" x 23" x 5.5" size 84%+ thermal efficiency 140,000 BTU maximum input 6.6 gallons/ minute capacity at 35F degree rise Minimum activation flow rate of 0.5 gpm Electronic ignition. Has a Power vented fan that Vents directly vertically or horizontally with 3” stainless steel flue 3' long flue and elbow included. Can be used in recirculation and space heating application . Delivers 6.6 gpm of hot water with a 35°F Instant Temperature Rise (Equivalent to 5.5gpm with a 45F temp Rise). European Model Digital Display is in Celsius.

• Modulates heat output in response to the flow rate of water running through the unit.
• Power vented directly vertically (rooftop) or sideways (wall) via Stainless Steel CAT III Flue 3.5" Diameter Included (20")
• NATURAL GAS - European Model - Digital Display is in Celsius
• Delivers 6.6 gpm of hot water with a 35°F Instant Temperature Rise (Equivalent to 5.5gpm with a 45F temp Rise)
• Certified for Installation in Manufactured (Mobile) Homes Pure Copper Heat Exchanger

User questions & answers

Question:	I'm having trouble finding the remote priority controller. Can you provide informatio on how to order it for this model? also cant find on excel site
Answer:	This model does not come remote priority controller any more
Question:	Does unit require fresh air intake
Answer:	Yes , all gas appliances require fresh air for combustion
Question:	Are the fittings USA standards
Answer:	Everything is standard but the threads on the natural gas line were not tapered enough for a standard 3/4 pipe fitting but there was a brass fitting included in the package that reduced to 1/2 pipe and all I did was put a reducer on that to get it back to 3/4. This unit is a super water heater. Better than our old Rani.
Question:	How far from combustibles does the vent pipe have to be? I plan on going through block foundation but worried about vinyl siding above it
Answer:	Vinyl siding is made of PVC . PVC is incombustible and the heater is so efficient that only 10% of the heat is gone in the form of water vapor are about 220 F, not to affect PVC.

Product description

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

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

User questions & answers

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

Product description

FEATURES-

◆ Minimize Wait Time for Hot Water

The Thermoflow UT15 is a point-of-use electric mini-tank heater which can stores up to 4.0 Gallons (15L) of water to supply hot water quickly. This heater can supplement a primary water heating source, or be used under a single sink. There’s minimal stand-by loss from this premium mini-tank water heater, saves water by eliminating the wait for hot water to reach your faucet.

◆ Active Protection Circuit for Safe Installation

If the water heater does not come out with hot water when it’s already connect to the electric supply, then the water heater will cut off the electric supply automatically to prevent the water heater from overheat. This also reduces the risk of damage to the water heaters.

◆ Thermostop function,Low Standy Loss Power Consumption

Selectable temperature range between 45℉ to 167℉, two modes options, energy saving mode and frost protection mode, suitable for any season.The maximum temperature raise is 167℉(75℃) for 4.0 GPM and the minimum temperature raise is 45℉（7℃).This also reduces the risk of damage to the water heaters.



IMPORTANT TIPS-

1. A SAFETY VALVE IS NECESSARY FOR INSTALLATION!

2. DO NOT install heater in a location where there is a potential for freezing.

3. BEFORE you connect the device to the electrical supply the device must be filled with water.

4. DO NOT remove the heater cover or open the unit without first turning off the power at the breaker panel.

5. Please read the instruction manual carefully before you install or using the water heater !



PACKAGE INCLUDES -

1X 4.0 Gallons mini tank water heater

2X 1/2“ NPT brass bushings

​​1X Water relief valve

1X 1/2“ NPT Connector

1X instruction manual

NOTICES: Shower head ,pedestal and water heater hose are NOT INCLUDED!



Inquiry & aftersales service: [email protected]



Hotline:＋1（844）334-4203

• ➤ 4 GALLON CAPACITY - 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Stainless steel tank and heating element designed for efficiency, durability and long life service (Relief Valve has been upgraded)
• ➤ Save Energy - Low stand-by loss power consumption. With Advanced Thermostop Technology of Germany, stop heating or reheating automatically when the water heater reaches a high or low set temperature
• ➤ EPS FOAMING TECHNOLOGY - Heating water quickly and better insulation, fast recovery rate eliminates long waits for hot water at your sink
• ➤ SAFE & RELIABLE - over-heat protection, auto cut-off electricity if not hot water come out, IPX24 water proof, 2.6ft plug in cord, suit for kitchen, bathroom, bar, school, hospital, office and RV.
• ➤ NOTES - Please verify that this model is the right size for your hot water needs and electrical requirements before purchase & installation. Dimensions: 18H x 12.2W x 11D inches; Weight: 14 lbs; Water connections: 1/2 inch NPT, Electrical requirements: 1.5 kW, 120 Volts. Max pressure: 150PSI. Nominal current: 13A.

User questions & answers

Question:	CN this be used as main hot water supply for a travel trailor
Answer:	It comes with two.
Question:	Could it be used for one sink and a shower in my fishing camp
Answer:	3 3/4 inches from left to right and top to bottom you need a 3 1/4 hole saw to install it
Question:	Can you be clear on the measurements please
Answer:	a basic 12 volt system, red to a live wire when running, yellow "memory" to permenent live wire, black to ground. i didnt mess with the usb cable
Question:	Does it work for a shower in a rv
Answer:	Pick the free shipping option

Product features

Electric Point of Use Water Heating Solutions

Low Standy Loss Power Consumption - Selectable temperature range between 45°F to 167°F, two modes options, energy saving mode and frost protection mode, suitable for any season.

Minimize Wait Time for Hot Water - Maintenance-free stainless steel tank and EPS foaming heating system. Stores up to 4.0 Gallons of water to supply hot water quickly. There’s minimal stand-by loss from this premium mini-tank water heater, saves water by eliminating the wait for hot water to reach your faucet.

Electric Point of Use Mini Tank Water Heaters

Thermoflow UT15 electric mini tank water heater is a true Point of Use Model because it is specifically designed for under sink. In fact, the Thermoflow 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.

Quick Hot Water Supply

Thermoflow UT15 Mini-Tank Water Heater fits for under sink. Provides hot water in seconds at point of use, perfect for a basement wet bar, patio kitchen station, garage, attic, or even in an RV or on a boat, hot water will quickly be in hand.

Saving Energy

Short distance hot water supply, minimize wait time for hot water,saving energy and your bills. Whether as a sole water heating source for a single sink or as a supplement to an existing heater located far from the sink, this premium mini-tank water heater's stand-by loss is minimal!

4.0 Gallons Capacity

4.0 gallons capacity maintenance free stainless steel tank, stores up to 4.0 gallons water to provide hot water where you need it. Fast recovery rate eliminates long waits for hot water at your sink. Supplies up to 3 sinks at a time.

Great for Small Spaces

Water heaters are compact and lightweight and can be ground mounted - features a sleek and attractive design to blend seamlessly with decor, very friendly to any small spaces.

Auto Cut-Off Protection for Safety

If the hot water temperature higher that the set temperature, water heater will cut off the electric supply automatically to prevent the water heater from overheat. This also reduces the risk of damage to the water heaters.

Maintenance Free Stainless Steel Tank

Thermoflow UT15 Mini-Tank water heaters are stainless steel tank designed, which is easy to maintain and durable for long life. Also it is high efficiency for heating, saving energy and your bills.

Plug-In Style, Easy to Use

Very easy to install, just plug into a 120v electric supply socket (35 inches power cord includes). Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. Whether you need the thermoflow UT15 for a basement wet bar, patio kitchen station, garage, attic, or even in an RV or on a boat, hot water will quickly be in hand.

Product description

Upgrade your commercial (or residential) water heating solution with the Bosch US7-2R Tronic 3000 Electric Tankless Water Heater. This 7.2 kW under-sink tankless water heater is designed to provide an endless supply of instantaneous hot water to one or more sinks. This electric heater can be installed in a 360 degree orientation so you can position the unit in tight under counter spaces for a flexible, worry-free setup. The ultra compact and lightweight unit runs at 98% thermal efficiency, so stand-by loss is minimal. Plus, it does not require a temperature or pressure relief valve for your convenience. The roundagon Bosch DNA design provides a modern look that seamlessly blends in with existing decor when installed in a visible location and is built of durable plastic housing for long-lasting use. Due to the amperage requirement this item will be hard wired. It also includes a 5 year limited warranty on the copper heat exchanger and 2 year limited warranty for all other components so you know your purchase is protected. This water heater measures 6.6" x 12.8" x 2.9", making it the perfect size for light commercial applications such as shopping malls, airports, stadiums and offices. Save space and energy with the Bosch US7-2R Tronic 3000 Electric Tankless Water Heater!

Bosch Thermotechnology is a leading source of high quality water heating and comfort systems. The company offers electric whole house and point-of-use water heaters, elcetric heatpump minisplit HVAC systems, and connected control thermostats. Bosch Thermotechnology is committed to being Simply Smart by offering products that work together as integrated systems that enhance quality of life in an ultra-efficient and environmentally friendly manner.

Manufacturer Contact Information

800-283-3787

• ELECTRIC TANKLESS WATER HEATER: 7.2 kW under-sink tankless water heater designed to provide an endless supply of instantaneous hot water to one or more sinks
• FLEXIBLE INSTALLATION: Can be installed in a 360 degree orientation so you can position the unit in tight under counter spaces for a flexible, worry-free setup. Due to the amperage requirement this item will be hard wired.
• EFFICIENT DESIGN: Ultra compact and lightweight design with 98% efficiency and no stand-by heat loss plus does not require a temperature or pressure relief valve
• DURABLE PLASTIC CONSTRUCTION: Roundagon Bosch DNA design provides a modern look that blends in seamlessly with existing decor when installed in a visible location and is built of durable plastic housing for long-lasting use
• IDEAL SIZE: Measures 6.6" x 12.8" x 2.9", making it the perfect size for light commercial applications such as shopping malls, airports, stadiums and offices.

User questions & answers

Question:	Could I use this water heater for two salon sinks? Or would I need to get one heater for each sink
Answer:	approx 12'
Question:	What type of hose connector
Answer:	More than likely, they really didn't change much. . Should get the numbers on yours to make sure.
Question:	can this be installed on the hot water side of a supply line to quickly provide hot water to a sink before the hot water arrives from the hot water he
Answer:	Some have a 120v heating element, your replacement may not. There are a couple thermocouples that contact the outer wall of the tank to let the system know when to apply heat and when to stop it, it might be those connections.
Question:	Can this unit be installed outdoors
Answer:	Mine is propane only. I think any epoxy would work just fine.

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 Bosch US12 Tronic 3000 electric tankless water heater is designed to provide an endless supply of hot water to kitchen, bathroom, and handwashing sinks. This 12 kW electric heater eliminates long waits for hot water by using a dual chambered copper heat exchanger. The unit runs at 98% thermal efficiency, so stand-by loss is minimal. This model features on-unit thermostatic control, so you can set the water temperature to your desired range. Plus, it mounts on the wall in any direction and is compact and lightweight, making it a great choice for a variety of spaces. With its top performance specifications and versatility, the U12 Tronic 3000 is a great way to get the hot water going in kitchens, offices, at warehouses, service stations, stores, and concession stands. This item requires professional installation and hardwiring and is only designed to operate on an electric voltage of 240.

From the Manufacturer

Ultra compact and lightweight, these five point-of-use / under-sink tankless water heaters were designed to provide an endless supply of hot water for 1 kitchen and / or bathroom sink at a time in commercial, industrial, and residential applications. Advantages include 98 % efficiency with minimal stand-by loss. Most models come equipped with high / low kW settings and universal horizontal / vertical mounting options.

Manufacturer Contact Information

800-283-3787

• CONVENIENT TANKLESS HOT WATER HEATER: 12 kW output tankless electric water heater eliminates long waits for hot water at point-of-use
• EASY INSTALLATION: Easily install under any bathroom or kitchen sink and get on demand hot water at your every need. Common Applications-Commercial tentant improvements (ie: office suite with a sink or an attached bathroom), Garage apartments, In-law suites
• TEMPERATURE CONTROLED: Features thermostatic control for easy temperature output adjustments to match your preference
• IMPORTANT INFORMATION: Unit is only designed to operate on 240-Volt. Dimensions : 12.75 x 6.5 x 3 Inches
• GREAT EFFICIENCY: 98% efficient with minimal stand-by loss. Water pressure range of 10-150 PSI

User questions & answers

Question:	Is this item here the US3. I need the 120volt unit
Answer:	No, the 120V unit is the 3.2 KW unit and is the Bosch Tronic 3000 US3. GlobalTowne is an Authroized Bosch Distributor.
Question:	On the 9.5k model. At what flow rate does it turn on
Answer:	not sure when it actually turns on, but I usually ran it at about 1.1 gallons per minute. Sometimes, if the cold water was running or the toilet was flushing, the water flow was not fast enough to turn it on.
Question:	Could two of these connected in series provide a higher gpm rate? (my winter water temp is often below 40f. looking to get a little over 2gpm
Answer:	No, The Bosch electric tankless water heaters cannot be fed into one another, Max temperature into the unit is 86 degrees F. For good hot water at 2 gpm I would suggest the high KW unit Bosch Tronic 6000C WH17. This unit is a 17KW unit and requires 2 - double pole 40 amp breakers with 8 gauge wire. GlobalTowne is an Authorized Bosch Distributor.
Question:	The 12kw unit specs from bosch recommend 6 gauge wire. is it safe to use 8 or 10 gauge wire
Answer:	8 or 10 gauge wire will not be heavy enough for the Bosch US12 as it is a 12 KW unit and requires 6 gauge wire. GlobalTowne is an Authorized Bosch Distributor.

Product features

Reliable Point-of-Use Heat

Provides hot water with electrical power at the sink where you need it, so you don’t waste time or water waiting, and is backed by a limited 5-year warranty on the heating element and 1-year limited warranty on other components.

Save Energy and Money

Because water is heated directly without the use of a storage tank, there’s no standby energy loss experienced by traditional tank heaters, and no pressure or relief valve is required.

Great for Small Spaces

These tankless heaters are compact and lightweight and can be mounted vertically or horizontally (except model US12) – featuring an understated design to blend in seamlessly with existing decor.

The Benefits of Going Tankless

Waiting for hot water at a sink located far from the 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 install the Tronic 3000 from Bosch: a point-of-use electric tankless water heater. Tankless heaters are a great energy saving option – and when you save energy, you save money! In addition, the Tronic 3000 takes up far less space than a traditional heater, and can be wall mounted right under the sink, taking up practically zero space in your home. Because they run on your home’s electricity and don’t hold water, less overall maintenance is required. With less wait for water, savings of energy (and therefore money!) and less space, the benefits of choosing tankless heaters for your home or business are obvious.