5 Best Whole House Tankless Water Heater Reviews And Buying Guide ( 2019 )

Different people choose different kinds of Tankless Water Heaters according to their requirements. Some people only go for the point of use type while the others require The Whole House Tankless Water Heaters. The whole house tankless water heaters can save much energy than the point of use ones. You don’t need to buy several water heaters to fulfill the hot water need every day. Only one whole house hot water heater can fulfill your requirements.

Best Whole House Tankless Water Heater Reviews 2019:

For helping you out in getting the best and most suitable Whole House Tankless Water Heater, we have made a list of the Best Tankless Water Heaters that can fulfill your hot water heater requirements every day. These tankless water heaters are of different types and provide you different water flow rates. You can choose any of these tankless water heaters according to your requirements.

1. EcoSmart ECO 27 Electric Tankless Water Heater:

EcoSmart ECO 27 Electric Whole House Tankless Water Heater Reviews 2019

Features:

  • Self-Modulating Technology:

This device has advanced self-modulating technology. The sensor helps it in saving electrical consumption. The Ecosmart ECO 27 water heater is fifty times more than the normal ones. The sensor allows it to heat the water only when it senses the flow. This tankless water heater is cost-effective and very intelligent.

  • Digital Temp Control:

The new gen of the tankless water heaters gas has a digital temp controlling system. This device also has this system. This feature allows you to set the temp how you want it. It can really control the temp with the help of thermistor and flow control valve. The digital scale provides Eighty Degrees Fahrenheit to one hundred and forty degrees Fahrenheit with boosting the heat in the rise of one degree. That’ll let the user select the right temp.

  • Simple To Maintain And Clean:

You will need a professional to install this system. The cleaning and maintenance of the ECO 27 is very simple and quick. All you will require is a screwdriver. Also, you are good for performing any routine cleaning that has to be done.

Pros:

  • It can save space
  • Ninety-nine percent efficiency
  • POS heats water on demand
  • Non-stop supply of hot water
  • Lifetime warranty for its parts

Cons

  • It offers a low flow of water. The water isn’t as hot as it’d be.
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2. Stiebel Tempra Plus Eltron 24 kW Tankless Water Heater:

Stiebel Tempra Plus Eltron 24 kW Whole House Tankless Water Heater Reviews 2019

Features: 

  • Advanced Technology:

This device has advanced technology. The self-modulating technology of this unit can evade standby heat loss for saving energy. For automatically regulating the water pressure, it also has the built-in flow control advanced modules.

  • 5 GPM:

This tankless water heater can also consume five GPM of water. For supplying hot water to your entire house, this device has the full power modulation. The performance of the Stiebel Tempra Plus 24 kW is excellent, and the water it supplies is under forty-five degrees Fahrenheit. This unit can also raise the water by fifty-four degrees at three gallons per minute.

  • Stable Temp:

In different water flow levels, the advanced flow control system of this tankless water heater can adopt to control the temp of the water. It makes this device ideal for those in demand of the infrequent hot water. You can also use this tankless water heater for commercial use.

Pros:

  • Reliable cover and top-level electronic parts
  • Quiet working situation
  • Supports complete power modulation
  • Compact and stylish design
  • Ninety-nine percent energy consumption
  • Most technological advanced heater

Cons:

  • Hard to install, require heavy-duty wiring and 240 v power
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3. Rinnai RL94eP Propane Tankless Water Heater:

Rinnai RL94eP Propane Whole House Tankless Water Heater Reviews 2019

Features:

  • Best Quality Standard:

The majority of individuals like the inclusion and construction of the isolated valves. The valve for pressure releasing included in the kid is also very easy and clear to operate. But still you will need some professional help for installing it which can cost you a little, but it is convenient and safe.

  • Digital Control:

The control panel is included on this device. You can easily use it, and the error code readout will also help you out in using it quickly and safely. You can also set the temp as you like.

  • Multiple Bathroom Support:

This device provides you nine GPM of hot water. The Rinnai RL94eP can support both small and big houses. This unit is also very energy efficient and can heat up the water only when you utilize it. It means that it can save you a lot of money. But one thing is to mention that it takes a little time to supply the hot water, which is about one minute. This unit can take one minute to provide you hot water at an ordained spot.

  • High Temp:

The temp range of the Rinnai RL94eP is between ninety-eight to one hundred and eighty-five degrees Fahrenheit. You can use this tankless water heater for both residential and commercial use. If you are going to use this tankless water heater for the commercial use, then you will have to get a commercial remote for operating it.

Pros:

  • Money saver
  • High flow rate
  • Switches on just when you require hot water
  • Simple operating control panel
  • Residential and commercial use
  • Perfect for both small and large house

Cons:

  • Long waiting time for hot water
  • Hard to install
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Features:

  • High Energy Efficient:

The energy rating of this tankless water heater is ninety-four percent. It denotes that less energy will be wasted when in use. To make this tankless water heater eco-friendly, it comes with the low NOx design. This tankless water heater is available in both natural gas and propane.

  • 5 Gallons Per Minute Flow Rate:

The water flow rate of this tankless water heater can go up to 9.5 GPM. If you live in a warmer area, then you can be able to use three to four bathrooms at the same time. But if you live the colder climate, then only two bathrooms are supported at a time. You can get constant hot water supply for residential use or even for commercial use.

  • Remote Control:

You can make use of an application for controlling this tankless water heater. It has EcoNet smart home technology, which makes it easy for you to control the machine indoor. You will not require any ventilation facilities because of the outdoor installation.

Pros:

  • Compact shape
  • Ten years of warranty for all the heating parts
  • Natural gas and propane both available
  • Heat exchanger that is stainless steel
  • High energy efficient

Cons:

  • Must be installed by the professional
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5. Takagi T-H3-DV-N Indoor Natural Gas Tankless Water Heater:

Takagi-T-H3-DV-N-Indoor Whole house Tankless Water Heater 2019 Reviews

Features:

  • High Quality And Performance: 

This tankless water heater can provide you ten GPM of hot water. If you compare this with the standard system, then this flow rate is quite high. Also, it does not matter if you use this unit in more upper or lower elevation; the performance of this tankless water heater will be very similar.

  • Functions:

Natural gas can really support the heating process without any fluctuations. When the tankless water heater detects some cold water, it instantaneously works with the natural gas in its internal burners and heat exchangers for heating up the water. The minimum BTU is 19, 500, and the max BTU of this machine is about 199, 000. So, this tankless water heater makes sure to provide you the endless supply of hot water for fulfilling your hot water requirements.

  • Flexible Device:

This tankless water heater is extremely user-friendly regarding its performance and use. The installation of this tankless water heater is also very simple as this device comes with the direct power vent construction.

  • Capable Of Connecting Several Units To The Device:

You can easily connect your tankless water heater with the different units. You can use thus multi-unit controller for a lot of different applications and devices in the indoor, natural gas tankless water heater. This tankless water heater will serve you in more than three devices for the hot water without any multi-unit controller.

  • Innovative Water Condensing System:

It also has a combustion chamber where all the steam is created. This amazing feature makes the unit push out all the elements throughout the water is heated.

  • Safety Features:

Overheating protection and management, freeze control, troubleshooting diagnostic codes, and a lot of others are the safety features of this astonishing tankless water heater. This tankless water is also lead-free. The emission of this tankless water heater is ultra-low NOx, which makes it environmentally-friendly. For managing and controlling the heating system if it exceeds the limit, this tankless water heater also has the overheat cut off fuse. The sensor named AFR (air-fuel ratio) is active while utilizing this fantastic tankless water heater. This air-fuel ratio sensor is the new updated version of the sensor. The water temp control and exhaust are also included in this tankless water heater as the safety features.

Pros:

  • You’ll get the instantaneous flow of hot water.
  • The constant hot water flow even at when in heavy use.
  • It can save energy by using less power.
  • This unit has certified by the Energy Star.
  • It provides complete technical support and warranty.
  • This device’s durability is extremely high.
  • Simple set up.
  • Residential and commercial use.
  • Remote control available.

 Cons:

  • The PVC coupling is not so significant to be fitted.
  • The water flow rate is lower in colder regions.
  • The waiting time for some hot water is quite long too.
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What Exactly Are The Whole House Tankless Water Heaters?

These tankless water heaters refer to the ones that provide hot water to your entire house. The whole-home devices have higher gallons per minute rate and can easily handle your demand for more than one fitting at a time. For instance, a device might sufficient capacity for handling two shower fittings at one time, or a kitchen sink, a dishwasher, and bathroom hot water tap at one time.

What Exactly Are The Whole House Tankless Water HeatersWhy the diverse number of fixtures? Well, it is because different fixtures utilize diverse amounts of water. A few showerheads can make use of 6 times more water than a lavatory valve.

The number and size of the whole-home tankless water heaters you require will be mainly driven by the water flow rate, which is decided by the types and number of fixtures you might have running at a time. And the most horrible culprits are the showerheads. It is why you might require more than one whole-house tankless water heater installed in parallel for meeting the hot water demands, particularly for the concurrent shower usage. The whole-house devices are much pricier than the POS ones.

The Whole House Tankless Water Heater Features:

If you choose whole house tankless water heater to install in your house then you will get to enjoy the following features:The Whole House Tankless Water Heater Features 2019

  1. Space Saving:

The whole-house tankless water heaters are normally has a large water flow rate. But don’t get fooled by its name, the size of these heaters is smaller because they don’t have any tank. These types of tankless water heaters can really save a lot of space in your house because they have a compact and stylish design.

  1. Lower Prices:

If you have one whole-house tankless water heater installed in your home, it can really equal 3 – 4 small or POS tankless water heaters. Through the whole-house tankless water heaters are expensive than the POS ones, but in the long run, the POS tankless water heaters can be much more expensive than the whole house ones.

  1. Long Service Life:

You can really use your good quality whole house tankless water heater for twenty years, which is quite a long time for a tankless water heater as compared to the tank ones. And the best part is that most of the tankless water heater manufacturers provide ten to fifteen years of warranty on the water heater exchangers.

How Can You Select The Best Whole House Tankless Water Heater?

There are a lot of diverse kinds of whole house tankless water heaters available out there. Some of these types of tankless water heaters provide you high flow rate while some of them come with advanced technology. We have provided some of the best tips down here that can really help you out in selecting the cost-effective and best suitable whole house tankless water hear for your house.

  1. Home Location:

The performance of a whole house tankless water heater can be different in different weathers and using situations. In the warmer areas, the water flow rate and temp range are high, while on the other hand, in the colder climates, it becomes a low rate tankless water heater. So, before choosing the one, you should always consider the home location to get the best results. If the climate around where you live is colder than you should go for the one that has freeze protection.

  1. Flow Rate:

The flow rate of a whole house tankless water heater has to be high so that it can fulfill the hot water requirements of your entire home. Therefore, you have to estimate the average amount of hot water your family uses every day to get the best whole house tankless water heater. If you live in a small house that has only one bathroom, then the flow rate around three to five gallons per minute would be enough for your daily usage. But if you live in a warmer climate and intent to utilize 3 – 4 bathrooms at the same time then you should really consider buying a whole house tankless water heater that has a flow rate of about nine gallons per minute.

  1. Energy Efficient:

The whole house tankless water heaters have to consume a lot of water every minute to warm it up; therefore, you should really consider purchasing the one that has high energy type so that you can be able to same much of your hard-earned money every month on the water bills as well as your heating bills.

  1. Power:

Some of the whole house tankless water heaters with the larger water flow rates can still lack enough power which makes it so hard to support the continuous hot water supply, or the temp is not stable for using. You can get constant hot water supply with the help of large power whole house tankless water heaters. The electric whole house tankless water heaters are less powerful than the propane or gas ones. But still, there are a lot of whole house tankless water heaters types you can really go for.

The Whole House Tankless Water Heaters Types:

According to the power source of the whole house tankless water heaters, they can be divided into three main types. These types include the whole house propane tankless water heaters, the whole house gas tankless water heaters, and the whole house electric tankless water heaters. Now, let’s learn a little bit more about these types!

  1. The Whole House Propane Tankless Water Heaters:

The electric whole house tankless water heaters and the gas whole house tankless water heaters are quite the same for the most part. The ventilation facilities will be required for this type of whole house tankless water heater. Based on the requirements of the products, you can install this device indoor as well as outdoor. Also, if you want to know more about the whole house propane tankless water heaters then check out our reviews.

  1. The Whole House Gas Tankless Water Heaters:

The natural gas is used for powering this type of whole house tankless water heater. If you want the most powerful whole house tankless water heater, then this one is the best option you can get. For safety, the ventilation facilities will be required. The using costs of this tankless water heater are quite low, and it can really heat the water from the incoming cold water temp. If you want to know more about the whole house tankless water heater, then feel free to check the reviews we have provided.

  1. The Whole House Electric Tankless Water Heaters:

The electric whole house tankless water heaters make use of electricity only, so these suits the family lack of extra pipelines. It also means that you will not require any ventilation. You can install these systems anywhere you want. But keep in mind that the using charges of these whole house tankless water heaters will be quite high. It is said that the whole house electric tankless water heaters can save up to sixty percent of the energy costs. If you are really interested in buying the whole house electric tankless water heater for your house then make sure to check out our reviews.

Please Pay Attention:

As the whole house tankless water heaters are utilized for supporting the large amounts of hot water for the various uses; therefore, you will have to install them neat the POS, for the whole house Electric Tankless Water Heaters, you would rather install them near the main electricity panel for the clear and direct installation. Or it might take an extended time for the hot water to flow out of your pipes ad that denotes much cold water is squandered, the water bills will be added so.

Best Whole House Tankless Water Heater

1. EcoSmart ECO 27 Electric Tankless Water Heater :

EcoSmart ECO 27 Electric Whole House Tankless Water Heater Reviews 2019

Best Whole House Tankless Water Heater

2. Rinnai RL94eP Propane Tankless Water Heater

Rinnai RL94eP Propane Whole House Tankless Water Heater Reviews 2019

Best Whole House Tankless Water Heater

3. Takagi T-H3-DV-N Tankless Water Heater

Takagi-T-H3-DV-N-Indoor Whole house Tankless Water Heater 2019 Reviews

The Bottom Line:

We have mentioned the top five whole house tankless water heaters that you can really consider buying. They provide the best performance. The costs of the whole house tankless water heaters are definitely higher than the POS tankless water heaters, but the brilliant performance and high quality of the whole house tankless water heaters are surely worth the cost. The tankless water heaters that we have reviewed above are at different cost levels; you can check the detailed cost on Amazon.