The 11 Best Whole House Hot Water Heaters For Tankless (2022 reviews)

The look and feel of these heaters are consistent with the high quality we're used to from the rest of Stiebel Eltron's lineup. The Stiebel Eltron Whole House Hot Water Heater For Tankless has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work. Make sure this fits by entering your model number. Also, it is inexpensive, it is best for home improvement and has a water heater design.

The heater comes with a manufacturer 's warranty, it comes with a flow sensor and has a compact design. Also, it is easy to follow and has a controller design. Above all, the Stiebel eltron whole house hot water heater for tankless maintains water temperature for constant comfort.

Almost all customers agree that the heater comes with 2 hot wires and a ground wire. In addition, a few also found that the heater has much better temperature control and regulation. Moreover, they strongly agree that the heater uses a 220 power source. With no doubts, this heater passed the test and had very satisfied buyers eager to share their experience.

Customers say that getting a system water filters for the whole house, along with heater is useful.

Top Customer Quotes:

This is used for the old tank.
This is great in a 2 - full - bath summer home.
This can be used as you're threading on adapters with channel locks.
This will work in a 3 story house, but how many showers do you have.

Best For Stainless Steel: Rinnai Whole House Hot Water Heater For Tankless

Buy on Amazon

If you often find yourself scrambling for an appropriate and satisfactory heater, Rinnai Whole House Hot Water Heater For Tankless is your end point. The rinnai whole house hot water heater for tankless is great for space savings and has a standing design. With rinnai, hot water is always available to you, no matter how much or how often you need it. This rl94ep compact water heater has a longer lifespan since water runs continuously through pipes.

The heater is very small, it works well for good quality and has a tankless design. Above all, the rinnai whole house hot water heater for tankless is highly recommend, It makes for easy installation and has an efficient design.

Almost all customers agree that the heater is a large pipe, and requires a 5.5 or 6" hole. And, a few strongly agree that the heater can operate with a battery backup system, which is available as third party accessories. Moreover, they also found that the heater takes about 30 seconds for the water to come to temp.

Top Customer Quotes:

This will go even higher with a commercial temp control option.
These are charging $225 / hour for diagnostic and backflush/descale service.
This works with this non-condensing model.
This takes no space worth talking about.

Best For Space Saving: Ecosmart Whole House Hot Water Heater For Tankless

Buy on Amazon

The Ecosmart Whole House Hot Water Heater For Tankless gives the top-tier heater a run for their money by offering flagship specs at a much more affordable price. The ecosmart whole house hot water heater for tankless works perfectly, It is safer and has an efficient design. Change disposable filter cartridge every 6 months or sooner if you observe a noticeable reduction in water flow rate. Moreover, this is ideal for providing hot water for larger homes in warm climates and small whole home applications with colder inlet water temperatures.

The heater is great for cost savings and it is designed to be worth every penny. In addition, it is practical, is made for high flow rates, it saves space and has a cool design. Above all, the ecosmart whole house hot water heater for tankless provides flow of up to 10 gpm with ¾” npt inlet/outlet connections.

Almost all buyers opine that the heaters are anywhere from $650 to $2, 000 with decent reviews. And, they strongly agree that the heater is a way of measuring heating by flame. And, they also found that the water heater easily keeps up with a shower and the kitchen sink running at the same time.

Customers discovered that getting a system water filters for the whole house and flush valves for tankless water heater, along with heater is useful.

Top Customer Quotes:

This is the same thing as your gas heater but using electricity instead of gas.
This reduces to a 3/8 or 1/2.
It has a lot of currents running through it.
This is designed for a full family capacity.

Best For Compression Fittings: Rheem Whole House Hot Water Heater For Tankless

Buy on Amazon

The whole house hot water heater for tankless's high-end materials makes sure that it ages well with use. The whole house hot water heater for tankless is plenty hot, is designed for compression fittings, It is non-corrosive and has a tankless design. Make sure this fits by entering your model number. Further, it is very hot, it lets it run and has a sleek design.

The heater works as expected, looks good, it is secure and has been considered design. And, the heater is popular for cabins, It is great for hot water output and has a water heater design. Finally, the Rheem Whole House Hot Water Heater For Tankless works with a lower electricity bill, It comes with a flow sensor and has a safety design.

Almost all buyers agree that the heater is based on a temperature setting of 105 deg f. In addition, a few strongly agree that the heater will only raise 2.5 gpm of shower water to 29 degrees. In addition, a few strongly agree that the heater is best for a single point of use, like one person taking a shower. Overall, many customers have used the whole house hot water heater for tankless for more than a few months without any problems, and it shows no sign of giving up.

Top Customer Quotes:

This is insufficient for even one shower when the incoming water temperature is below 50 degrees.
This is used for 3 bedroom homes.
This is the way the knob works.
This is perfect, but time will be the test.

Best For Temperature Control: Camplux Enjoy Outdoor Life Whole House Hot Water Heater For Tankless

Buy on Amazon

We would, of course, be remiss if we didn't mention camplux enjoy outdoor life. whole house hot water heater for tankless for regular use. The camplux enjoy outdoor life. A whole househot water heater for tankless is necessary to manually unscrew the pressure relief valve to drain the water inside the machine in time after using the machine to avoid freezing and blowing up when the temperature is lower than 32. You can take camplux customized wall thimble-wt236 for perfect indoor use. You can buy the bundle to save money. This indoor tankless water heater features a sleek black tempered glass panel, fully automatic temperature controls for precision, and a touch screen with a led temperature display that shows output temperature and gpm flow.

The heater comes with a 2.3" horizontal vent pipe, ensures efficient power ventilation. Moreover, this comes with great customer service, it is very good and has a unique design. Finally, the camplux enjoys outdoor life. A whole house hot water heaterfor tankless is good for electronic ignition, provides great value, It comes with a flow sensor and has an efficient design.

Most buyers found that the heater comes with a 1 year warranty. You can feel free to order camplux items on amazon. In addition, a few also found that the heaters are optional to install after everything is working correctly. And, they say that the heater requires a certain amount of psi to operate, which you wo n't get if you use a water pressure reducer. To sum up, most buyers agree that the heater suits them best, and no one questions it.

Customers discovered that getting a system water filters for the whole house, with this heater made their life much easier.

Top Customer Quotes:

This is constantly expanding, so a keen eye out for quality, innovative products.
The 3.18-gpm heater is activated by water flow rather than water pressure.
Camplux is dedicated to providing you with an easy and efficient outdoor life style.
This is going strong, It is good for fast delivery and has a sleek design.

Best For High Temperature: Fogatti Whole House Hot Water Heater For Tankless

Buy on Amazon

Fogatti makes beautiful and great heaters with classic and smartly chosen materials. The Fogatti Whole House Hot Water Heater For Tankless is very quiet and has a safe design. Antifreeze protection needs your cooperation，please keep your water heater staying plugged into a 120v 60hz power supply to make sure the anti-freeze system automatically ignites. In addition, it works fantastic, it is easy to adjust and has a portable design.

The heater is for overheating protection, It is very good and has a compact design. Moreover, this comes with a uef of over 0.82, The high energy conversion rate can effectively reduce energy loss, saving the family energy and money. Finally, the fogatti wholehouse hotwater heater for tankless works well with good customer service, It works flawlessly and has a controller design.

Almost all customers opine that the heater is suitable for installation and use at normal altitude, Unfortunately, it is not suitable for use at an altitude of 77, 00 ft. Also, they strongly agree that the heater is an insta hot liquid propane waterheater without a water tank. Moreover, they say that this water heater on demand for home uses 20l(5.5 gpm equivalent ) natural gas. Overall, the tone of buyers is very positive and we believe that the heater suits the purpose.

Few customers bought system water filters for the whole house, along with the heater.

Top Customer Quotes:

This is made of oxygen-free copper, efficient and durable.
It comes out hot enough not to condensate.
This allows you a constant supply of hot water.
This is a pretty installation…mark.

Best For Gas Connection Size: Marey Whole House Hot Water Heater For Tankless

Buy on Amazon

The whole house hot water heater fortankless is satisfactory and appropriate and fits well with your daily use. The whole house hot water heater for tankless is used for constant temperature, It is adjustable and has a smart design. The Manufacturer says: We have a solid foundation in the mainland, but we also have initiated our business in Puerto Rico. And, it allows installation in almost anywhere at home 7.

The heater comes with a flow sensor and has a water heater design. Also, it is clear, is very happy, it is used for gas connection size and has a safe design. Most importantly, the whole house hot water heater for tankless has no pilot light and consumes no gas when the heater is not being used.

Most buyers found that the heater is a natural gas, not a propane unit. Moreover, a few also found that the marey ga24csang is a non - condensing heater and vents using 3 " single wall stainless steel venting. Overall, the tone of buyers is very positive and we believe that the heater suits the purpose.

Customers found that buying a whole house water filters for apartment, along with heater is useful.

Why We Like This:

This is ideal for any size of home, apartment, cabin, and small commercial use.
One of the newcomers and featured product.

Best For Remote Control: Biselong Whole House Hot Water Heater For Tankless

Buy on Amazon

The Biselong Whole House Hot Water Heater For Tankless is capable of outshining several other heaters featured in this list in overall features for the price point. The biselong whole house hot water heater for tankless is used for high-grade, It is perfect for compact size and has a tankless design. Multiple safety protection functions protect you from the risk of scald, leakage or other injury. The electric tankless water heater comes with a digital display & touch control panel for visual setting.

The heater is great for high cleaning costs, is good for space saving, it allows for good flow and has an efficient design. Moreover, the heater saves space, it is constructed with high-quality and has a portable design. Most importantly, the biselong whole househot water heaterfor tankless heats up quickly, works as described, It is safer and has a smart design.

Almost all buyers agree that the heater is the third and it will break after 3 mo of use...3. In addition, a few also found that the heater is 240v, the trailer should be 110v, right. And, they also found that the heater can not share or provide a load with another device and the yes 110. In conclusion, the tone of buyers is very positive and we believe that the heater suits the purpose.

Customers say that buying a pressure pumps for hot water and tankless hot water heaters for mobile home, along with heater is useful.

Top Customer Quotes:

This works for beauty salon,s it allows for easy installation and has a waterheater design.
This is perfect for everyday use, especially in winter.
The tankless water heater should be installed professionally.
No mineral buildup, no the terrible things you worry about.

Best For Wire Size: Airreal Whole House Hot Water Heater For Tankless

Buy on Amazon

We would, of course, be remiss if we didn't mention the wholehouse hot water heater for tankless for daily use. The Airreal Whole House Hot Water Heater For Tankless makes for great hot water, It is good for important notes and has an efficient design. . In addition, this is used for plumbing connections, It lets it run and has a sleek design.

Above all, the airreal whole house hot water heater fortankless is super easy, has good build quality, it takes for hotwater output and has a compact design.

Most customers quickly discovered that the heater was 12kw and 54 amps, providing a 53 degree rise @ 1.85 gpm. Furthermore, a few also found that the heater does require a dedicated double pole 240 volt breaker and 8 gauge wire to be run. Moreover, a few say that the heater is used for recreational vehicles or campers as it is needs to run a set of 8awg/2 wires to the unit’s 2 hot lines and 1 grounding wire for a 240v power supply.

Top Customer Quotes:

This can work with a shower, sink and water.
This works well with a show and a sink.
This is the absolute minimum for a 1 - bathroom house.
This is perfect for a sink in this cold weather.

Best For Electronic Ignition: Camplux Whole House Hot Water Heater For Tankless

Buy on Amazon

Camplux is known for creating pragmatic and minimalist heaters for people on the go, and its line of camplux whole house hot water heaters for tankless definitely falls in line with that reputation. The Camplux Whole House Hot Water Heater For Tankless comes with 5.28 gpm and 150, 000 btu heating capacity through propane gas intake. The propane water heater features multiple protection ensures safety, equipped with pcb start up self-test &real-time intelligent monitoring, timely warning of potential gas fire and hydro power to ensure your family's safety. The 5.28 gpm gas tankless water heater supplys on - demand comfortable constant hot water for residential home use.

The heater is great for hot water output and has a compact design. Further, the heater saves energy, it is made for easy installing and has a safe design. Lastly, the camplux whole house hot water heater for tankless is perfect for great quality, It comes with great customer service and has a smart design.

One customer says - "Water stays hot for as long as you need it. ". Almost all buyers found that the heater includes the propane fittings already.

Customers say that getting a system water filters for the whole house, along with heater is useful.

Why We Like This:

This comes with more than 15 years of profound experience in the gas and electrical industry.
This is suitable for 2-3 outlets for the whole family.
This is good for electronic ignition, It works as advertised and has an efficient design.
This is easy to follow, it has enjoy outdoor life and has innovative design.

Best For Water Pipe: Velosan Whole House Hot Water Heater For Tankless

Buy on Amazon

The Velosan Whole House Hot Water Heater For Tankless is capable of outshining several other heaters featured in this list in overall features for the price point. The velosan whole house hot water heater for tankless is for space saving, It has features for very good quality and has a safe design. Make sure this fits by entering your model number. The tankless water heater has a small volume and takes up little space.

Lastly, the velosan whole house hot water heater for tankless is easy to follow, energy efficient too, It comes with an awesome price and has an efficient design.

Almost all buyers found that the heater is rated for southern pa but ca get water over 103. And, they strongly agree that the heater is easy to install with #6 wire on a 60 amp breaker and 1/2 inch brass female adapters for the pipes. Also, they strongly agree that the old heater is like a closet and it a long time to heat the water if it is off. Overall, the tone of buyers is very positive and we believe that the heater suits the purpose.

Top Customer Quotes:

There is no need to waste time reheating after restarting the equipment.
This comes with multiple protection measures such as leakage protection, overheating protection, etc.
This is a very heavy - duty and small yet very powerful tankless hot water heater.
This has ETL certification and has a flame-retardant device.