There are plenty of options available while buying commercial tankless hot water heaters in the market right now, and if you're confused regarding which one to go for, You have come to the right page.

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Our Top Picks:

Best Overall: Buy: Stiebel Eltron Commercial Tankless Hot Water Heater READ REVIEW

Best For Efficient Heating: Buy: Bosch Rmotechnology Commercial Tankless Hot Water Heater READ REVIEW

Best For Stainless Steel: Buy: Camplux Enjoy Outdoor Life Commercial Tankless Hot Water Heater READ REVIEW

Best For Temperature Control: Buy: Ecosmart Commercial Tankless Hot Water Heater READ REVIEW

Best For Compression Fittings: Buy: Iheat Tankless Commercial Tankless Hot Water Heater READ REVIEW

Best For Washing Machine: Buy: Eemax Commercial Tankless Hot Water Heater READ REVIEW

Best For Flow Rate: Buy: Rmoflow Commercial Tankless Hot Water Heater READ REVIEW

Best For Water Heater Application: Buy: Chronomite Labs Commercial Tankless Hot Water Heater READ REVIEW

Best For Customer Service: Buy: Rinnai Commercial Tankless Hot Water Heater READ REVIEW

Best For Remote Control: Buy: Biselong Commercial Tankless Hot Water Heater READ REVIEW

Best Overall: Stiebel Eltron Commercial Tankless Hot Water Heater

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Stiebel Eltron line of heaters comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Stiebel eltron commercial tankless hot water heater works with a lower electricity bill, is affordable, It is great with unlimited hot water and has a sleek design that saves space. Make sure this fits by entering your model number. Further, the heater is great for brand name, comes with a manufacturer 's warranty, it is built for silent operation and has a practical design.

Finally, the Stiebel eltron commercial tankless hot water heater is energy efficient, saves space, It has used pex and has a beautiful design.

Almost all customers quickly discovered that the heater is important when it comes to knowing the incoming water temperatures and what the output can be expected. Moreover, a few say that the heater can be used as you're threading on adapters with channel locks. Also, a few strongly agree that the reason for this is that the heater has two copper tanks where the heating takes place.

• This is made in Germany, so it’s nice to not see cheap Chinese garbage.
• This allows for good flow, it works well with water saver and has a control design.
• It looks like you are interested in the 29 kw one.
• This is used for the old tank.

Best For Efficient Heating: Bosch Rmotechnology Commercial Tankless Hot Water Heater

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If you often find yourself scrambling for a convenient and suitable heater, Bosch Rmotechnology Commercial Tankless Hot Water Heater should be your first option for buying. The bosch rmotechnology commercial tankless hot water heater is made for gallon size and it is elegant. Make sure this fits by entering your model number. Further, it is very small, is inexpensive and it is great for long showers.

The heater works with a pipe connection and it is best for customer service. Above all, the bosch rmotechnology commercial tankless hot water heater is really easy and it is made of cheap plastic.

Most customers think that the heater is so nice to having hot water in the winter, and year round. And, they also found that the heater was 30 or 40 pounds. Moreover, a few also found that the heater includes a complete printed instruction manual. In conclusion, many buyers have used the heater for more than a few months without letup, and it shows no sign of giving up.

• This is especially true in the complicated 120v/12v combo electrical systems in an rv.
• This will run hot for about 10 minutes straight.
• This is probably better answered by a plumber.
• The heater sits on the floor or can be hung using the supplied bracket.

Best For Stainless Steel: Camplux Enjoy Outdoor Life Commercial Tankless Hot Water Heater

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The features department is where camplux enjoy outdoor life. The commercial tankless hot water heater truly manages to shine. The Camplux enjoys outdoor life. A commercial tankless hot water heater is great for low temperature,sss It is very good and has a unique design. It has a glass - lined tank for a long service life and is easy to maintain. The camplux mini - tank water heater is equipped with an adjustable thermostat that once set will automatically control the water temperature.

The heater is constantly expanding, so keep an eye out for quality, innovative products. Further, the heater is 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. Most importantly, the camplux enjoys outdoor life. A commercial tankless hot water heater comes with a product dimension, is good for country of origin, it measures and has practical design.

Almost all buyers opine that the heater comes in 2.5, 4 & 6gal sizes. In addition, a few say that the heater is perfect and is hidden under the cabinet, hopefully for many years. Moreover, a few say that this hot water heater inlet / outlet size male 1/2 " npt, t / p outlet size female 3/4"npt. Overall, many customers have used the camplux enjoy outdoor life commercial tankless hot water heater for more than a few months without any complaints, and it shows no sign of giving up.

• This is using house hold electricity.
• This is easy to install using shark bite fittings.
• This is 220 volts you will burn the unit.
• It comes with plumbing and a shower head.

Best For Temperature Control: Ecosmart Commercial Tankless Hot Water Heater

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We would, of course, be remiss if we didn't mention Ecosmart Commercial Tankless Hot Water Heater for daily purpose. The ecosmart commercial tankless hot water heater can be used in colder climates as a point of use for a sink or other low flow application. Every ecosmart tankless electric water heater delivers endless hot water, while at the same time saving space, time, money, and allowing you to reduce your overall energy and water use. This smart technology electric tankless water heater is configured for climates where incoming water temperature is 67 degrees f and above.

The heater is maintenance-free and it is used for recreational vehicles. Also, the heater makes for great hot water, It is great for long showers and has a safe design. Most importantly, the ecosmart commercial tankless hot water heater can provide between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature.

Most buyers opine that the heater has been working as expected and does a great job in colder climates. Also, a few say that the heater will not take more than 30 minutes to swap out. Moreover, they say that the heater is designed to heat pools up to 11, 000 gallons. In conclusion, the tone of buyers is very positive and we believe that the heater suits the purpose.

• It has all the hot water they want at the time they want.
• This comes with information on how to repair it, when that will be needed.
• This is easy to install, dependable, and supported by a knowledgeable customer support team.
• They have both been very reliable and work like a champ.

Best For Compression Fittings: Iheat Tankless Commercial Tankless Hot Water Heater

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If you want nothing but a heater that is reliable, this Iheat Tankless Commercial Tankless Hot Water Heater is certainly a wise investment. The iheat tankless commercial tanklesshot water heater works perfectly and it is very happy. . Also, this is great with unlimited hot water and it is false.

Lastly, the iheat tankless commercial tankless hotwater heater is durable, is white and it heats up fast.

Most customers find that the heater works for its intended purpose and it is the way tankless works. In addition, a few strongly agree that the heater is designed for 110 volts. It may work for a short period of time but will pull too many amps and pop. Further, they strongly agree that this water heater is really rated as temperature over inlet temperature, so the warmer the input water, the hotter the output temp. In short, many buyers have used the iheat tankless commercialtankless hot waterheater for more than a few months without any issues, and it shows no sign of giving up.

• This can, but you need to have a 220v power supply available for it.
• This on - demand h2o water heater fits the bill perfectly.
• This is easy to set up and you start working immediately.
• This will be okay but not great for a shower.

Best For Washing Machine: Eemax Commercial Tankless Hot Water Heater

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If you want nothing but the most reliable heater, then Eemax Commercial Tankless Hot Water Heater is the one you should definitely consider. The eemax commercial tankless hot water heater comes with water connections, is used for home improvement and it saves money. Before purchase and installation, please verify that this eem24018 is the correct size for your hot water needs. Moreover, the heater saves money and it comes with digital temperature control.

Finally, the eemax commercial tankless hot water heater is built for energy efficiency and it is used for heavy gauge.

Almost all customers agree that the heater can not handle a full shower. In addition, they say that the heater can, but won't work any better that way than it does right side up. Also, a few strongly agree that the heater is suitable wall space for the tankless water heater. In short, at the price, they believe that they got a steal of a deal with it.

• This provides excellent quality and hot water for days in a two - full - bath home.
• This is very happy and it works well for compact size.
• This has been cranking hot water for over seven years.
• This heater uses ( 2 ) two poles and 40 amp breakers.

Best For Flow Rate: Rmoflow Commercial Tankless Hot Water Heater

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We would, of course, be remiss if we didn't mention Rmoflow Commercial Tankless Hot Water Heater for daily purpose. The rmoflow commercial tankless hot water heater is covered by a 2-year warranty. Instant hot water for small apartment or sink point of use, constant supply of hotwater whenever and however long you need, eliminates waiting time and you never run out of hot water. Further, it is great for simple installation, it is very happy and has a compact design.

Most importantly, the rmoflow commercial tankless hot water heater has a wire, It is great for its its size and has a water heater design.

Most buyers agree that the heater fits well on wall space saver instead of a big tank. Furthermore, a few also found that the heater comes out hotter than with a regular tank heater. Without any doubt, this heater passed the test and had very satisfied buyers eager to share their experience.

• It takes .66 gpm to activate heating at all.
• This has minimum water pressure, it works as expected and has an efficient design.
• This is highly recommended and has a controller design.
• This can you run new wires and have a larger breaker installed.

Best For Water Heater Application: Chronomite Labs Commercial Tankless Hot Water Heater

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The Chronomite Labs Commercial Tankless Hot Water Heater's material feels more premium than its price would suggest. The chronomite labs commercial tanklesshot water heater is unlimited, is great with unlimited hot water, It is suitable for waterheater applications and has a compact design. Make sure this fits by entering your model number. Moreover, the heater comes with a water connection, is designed for compression fittings, It is good for country of origin and has a water heater design.

Finally, the chronomite labs commercialtankless hot water heater has a mounting horizontal, It is 99 % energy efficient and has an efficient design.

Most customers opine that the heater takes gallons of water down the drain waiting for hot water.

• Good investment for the long term.
• Good brand reputation.

Best For Customer Service: Rinnai Commercial Tankless Hot Water Heater

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If you want nothing but the most convenient heater, then Rinnai commercial tankless hot water heater is the one you should definitely consider. The Rinnai commercial tankless hot water heater is guaranteed to last and has an efficient design. Circ-logic technology enables recirculation patterns that coincide with your typical habits. The cu199in compact water heater boasts a long lifespan as water runs continuously through its pipes.

Most importantly, the Rinnai commercial tankless hot water heater is used for heat exchanger, It is great for customer service and has a space-saving design.

One customer says - "Yes, you can install them in series. ". Almost all customers agree that the heater will help give better pressure. In short, the tone of buyers is very positive and we believe that the heater suits the purpose.

• It is very quiet, it is designed for water flow rate and has a tankless design.
• Lot of satisfied buyers.

Best For Remote Control: Biselong Commercial Tankless Hot Water Heater

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If you want nothing less than the best suitable heater, then a Biselong Commercial Tankless Hot Water Heater is the one you should definitely consider, as it manages to bring a lot to the table. The biselong commercial tankless hot water heater is very small, It allows for remote control and has a portable design. 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. In addition, it is designed with multiple safety protections, comes with automatic heat preservation, it is safe to use and has a cool design.

The heater is easy to control warmth. Above all, the biselong commercial tankless hot water heater comes with water connections, is durable, it is white and has a high pressure design.

Most buyers agree that the heater is easy to set up and portable for different uses. In addition, they strongly agree that the heater can not say enough about how awesome this little heater is. Also, they also found that the heater is a smaller tank (2.5 gallons) and empties quickly, but does heat fast. Overall, for almost all customers, it was just what they wanted.

• This has to be hooked up to a pressurized supply of water at all times.
• This is easy to install, and under a hundred bucks.
• This is great for thermal efficiency, it allows for simple installing and has a safe design.
• This takes running water to add to that using an immersion element.