3+ Best Whole-House Tankless Electric Water Heater Reviews 2020

The whole house electric water heaters make use of electricity as the main power source. Unlike propane or gas tankless water heaters, the electric type is more flexible in the installation places. As the whole house type, the water flow rate must be large enough for supporting the demand of the hot water.

Apart from that, there’re still a lot of other things you have to contemplate when choosing the one for you, and the following are some of the best whole house electric tankless water heaters reviews that you can check out!

The Best Whole House Electric Tankless Water Heaters:

There a lot of different companies of the whole house electric water heating systems available in the market. All of them have different special features and also some disadvantages, but to help you out in getting the best one for your house, we have compiled a list of some of the best whole house tankless electric water heaters here. You can read them out and check out their advantages and disadvantages, compare them with each other and then choose the one that best suits your needs.

 

IMAGEPRODUCTDimensionsWeight
Electric
Rheem RTEX-18
Rheem RTEX-18 4 x 15 x 19 inches8.5 lbsCHECK ON AMAZON
Electric
EcoSmart ECO 27
EcoSmart ECO 27 3.6 x 17 x 17 inches11 lbsCHECK ON AMAZON
Electric
Thermoflow Elex 24
Thermoflow Elex 24 19.9 x 12.2 x 6.4 inches10.4 lbsCHECK ON AMAZON
Electric
Stiebel Eltron Tempra Plus 24 kW Tankless Water Heater 2020
Stiebel Eltron Tempra 24 Plus 21.7 x 20.1 x 9.6 inches16.1 lbsCHECK ON AMAZON

1. Rheem RTEX-18 Electric Tankless Water Heater:

Rheem RTEX-18

Key Features:

  • Large Water Flow Rate:

This unit is really capable of consuming seven GPM, also capable of supporting two-bathroom uses and the kitchen faucets simultaneously easily. The self-modulation technology that it has can assist you in adjusting the water power to meet the hot water demand.

  • Smart Digital Control:

You can easily adjust eth water temp using the digital control panel of this unit. You can see all this on the screen. The temp will light up right away, once the valve is turned on. You can add it 1 degree Fahrenheit increment.

  • Easy Installation:

This device can be installed very easily; you might not need an expert for this job. You just need some basic knowledge about it. The durable copper immersion with two heating elements can really offer the best quality heaters. It weighs about 8.5 pounds and can take very little space.

Advantages:

  • Self-modulation technology
  • Exterior digital thermostatic control having the LED display
  • Threaded for simple replacement
  • Bottom 3/4 inch NPT (National Pipe Tapered) water connections
  • The constant supply of hot water

Disadvantages:

  • Can really take up some secs for the water to heat up
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2. EcoSmart ECO 27 Electric Tankless Water Heater:

EcoSmart ECO 27

Key Features:

  • Patented Self-Modulating Technology:

This unit comes with advanced self-modulating technology. It will provide hot water only when you will use it. It is also capable of monitoring and controlling the temp of the needed water smartly. The temp range of this device is between 80 to 140 degrees Fahrenheit.

  • Six GPM:

It can provide six GPM of hot water when it is utilized in warmer weather or warmer places. But if you live in a colder place, then it can only provide three gallons per minute but is still capable of fulfilling your demands of whole house hot water use.

  • Energy Saving:

The company boasts that this unit can really save up to fifty percent of the water heating cost. The compact shape of this unit can also save twelve cubic feet after the successful installation.

Advantages:

  • Run two showers at the same time
  • Unlimited supply of hot water
  • Stainless steel and copper component
  • Digital control system
  • Go up/down the temp with one increment

Disadvantages:

  • Not capable of producing the pipe hot water at a high water flow rate
  • The temp can’t be set right as the EcoSmart promises
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3. Thermoflow Elex 24 Electric Tankless Water Heater:

Thermoflow Elex 24

Key Features:

  • 167 Degrees Fahrenheit Water Temp:

The want temp range of this machine is between 32-167 degrees Fahrenheit. The exclusive electric temp control can keep the water temp stay steady even if the flow varies up/down.

  • Constant Supply Of Hot Water:

Activation of the water flow is 0.6 GPM after heating. This device is capable of supplying the constant hot water. It can also support multiple kitchen faucets and 1-2 bathrooms at the same time.

  • The Backlit Digital LCD Display:

This water heating unit also has a backlit digital LCD and a touch screen. It all makes it easy for you to control the temperature of the water. The max temp of handwashing is thirty-two degrees Fahrenheit, for the shower is 107 degrees Fahrenheit, and the max temp of the commercial application can really reach up to 167 degrees Fahrenheit.

Advantages:

  • Compact design
  • Water and energy saving
  • Self-modulating technology
  • Constant temp output
  • Exclusive electric temp control

Disadvantages:

  • Ideal for the small or middle-sized home
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4. Stiebel Eltron Tempra 24 Plus Whole House Tankless Electric Water Heater:

Best Stiebel Eltron 24 kW Tempra Plus Tankless Electric Water Heater Reviews 2020

Key Features:

  • Exclusive Advanced Water Flow Control:

This model really features advanced water flow control. If your demand for hot water exceeds its capacity, the advanced water flow control will decrease the water flow automatically a little for maintaining the consistent temp.

  • No Standby Lost:

It will only heat up the water when you really utilize it. That means no water will be wasted during the heating process. Thus it appears zero standby lost in the using process. It can also assist in saving much heating and energy bills.

  • Cost Saver:

The high technology equipped and the digital temp control can really assist in saving about fifteen to twenty percent on the water bills every month. The energy consumption can really reach as high as ninety-nine percent; thus, nearly no water is wasted during the process.

Advantages:

  • Utilized extensively for the home or commercial property as well
  • Digital temp control
  • A reliable cover and high-quality electronic parts
  • Incorporated advanced modules of flow control, for automatically regulating the water pressure
  • Can really support complete power modulation
  • Quiet in using time, zero mechanical switches

Disadvantages:

  • Hard to install, require heavy-duty wiring and 240v power
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Whole House Electric Tankless Water Heater Features:

The following are some of the fantastic features of the whole house electric tankless water heaters:

  1. Fast Heating Time:

The tankless electric water heater for the whole house use can really heat up the water fast. You will have to wait for no more than a minute for the hot water. These units can really supply the endless demand for hot water.

  1. Flexible Spots Of Installation:

Unlike propane and gas tankless water heating units, the electric ones don’t require any venting kits during the installation. That is why you can really install these units anywhere you want, no matter outdoor or indoor. No gas pipe is required either.

  1. Less Powerful:

The electric tankless water heater is less powerful than the propane or gas ones. It needs extra electricity so the using charges might be a bit higher than that.

Things To Contemplate On Selecting The Best Whole House Electric Tankless Water Heaters:

The following are a few factors that you should keep in mind when shopping for the whole house electric tankless water heaters:

  1. Water Flow:

Being a whole house tankless device, the flow rate ought to be large adequate for supplying the constant hot water for both kitchen faucets and bathrooms simultaneously. The average water flow rate of the whole house tankless water heater ought to be between three to eight GPM at least. If you have a big family and have to make use of more than sinks and three bathrooms at the same time, you might have to acquire a large flow rate machine.

  1. Energy Efficient:

As we all know that the electricity is used as the primary power source for supplying the constant hot water of heating devices. Thus it needs more electricity and the energy costs are much higher. Selecting a high energy-efficient tankless hot water device can really save much cash on the heating costs.

  1. Installation Spots:

You can really install the whole house tankless water heater outdoor and indoor, determined by the requirements and suggestions of the manufacturers. For installing outdoors, you ought to get at least one with the rain protection or freeze protection so that it can last long in the severe weather conditions.

  1. Safety Features:

For the best quality tankless water heater, the safety features ought to be the primary aspect in selecting and is also the main judgment. Most tankless units are designed for acquiring the self-protection systems like freeze protection, temp lock, and self-modulating technology, etc. With such devices, you’re really capable of utilizing them safely all the time.

  1. Warranty:

The cost of the electric tankless water heater isn’t a small deal; you don’t desire to purchase the one that can just be utilized for one or two years. Trustful and extended warranty can assist you in saving much cash in the repair and maintenance. The average warranty for the heating exchanger is ten to twelve years.

  1. Professional Installation:

A few of the whole house electric tankless water heaters are designed simply for the installation, while a few are hard that just the professionals can handle. For the professional installation, you have to contemplate the additional installation fee. But most professionals consider that the tankless water heater’s service life is largely depended on the installation, so try to hire the one if you lack the basic knowledge.

Conclusion:

If you want the best quality whole house electric tankless water heaters, then check out these on Amazon. There, you can really find great deals and discounts as well, which can really help you save much cash for you

Rheem RTEX-18 is the ideal unit for middle home usage:

Rheem RTEX-18

EcoSmart ECO 27 is the most compact and smallest one:

EcoSmart ECO 27