Whole house electric tankless water heater refers to the machine that adopts electric as a major power. Unlike gas or propane types, the electric tankless water heater is more flexibility in installation spots. As a whole house electric tankless water heater, the flow rate must be large enough to support demanded hot water. Apart from this, there are still many other factors you need to consider in choosing, and followings are the best whole house electric tankless water heater reviews we made for you.
4 Best Whole House Electric Tankless Water Heaters of 2020
Best Whole House Electric Tankless Water Heaters Reviews
On the market, there are many brands of whole house electric tankless water heater for hot sale. Each of them has their special features and also disadvantages, in order to help you get the most suitable one for your home, we made the best whole house electric tankless water heaters reviews for you, you can compare each of the pros and cons, and choose which suits you best.
1. EcoSmart ECO 27 Electric Tankless Water Heater
Features:
- 6 gallons per minute
When you use it in warm places or warm weather, it processes 6 gallons per minute water. While in cold weather, it drops to 3 GPM but is still able to meet the demand of whole house hot water use.
- Patented self-modulating technology
It is installed with self-modulating technology, it only provides hot water when you use it. And is able to monitor as well as controlling water temperature smartly. The temperature range of the machine is between 80-140 degrees F.
- Energy saving
EcoSmart boasts that it is able to save about 50% in water heating cost, and the compact shape also saves 12 cubic feet after installation.
Pros:
- Unlimited hot water supply
- Run 2 showers simultaneously
- Digital control system
- Copper and stainless steel component
- Go up and down the temperature with one increment
Cons:
- The temperature can not be set right as EcoSmart promises
- Unable to produce pipe hot water at a high flow rate
2. Rheem RTEX-18 Electric Tankless Water Heater
Features:
- Smart digital control
Temperature can be adjusted and set easily with a digital control panel, it shows on the screen. Once you turn on the valve, the temperature lights up immediately. It can be added one degree F increment.
- Large flow rate
It is able to consume 7 gallons water per minute, able to support two-bathroom uses and kitchen faucets the same time easily. The advanced self-modulation system helps adjust water power to meet hot water demand.
- Simple installation
You can install it easily by yourself if you have basic knowledge on it. Durable copper immersion with two heating element provides high-quality heaters. 8.5 pounds of it occupies less space.
Pros:
- External digital thermostatic control with LED display
- Self-modulation technology
- Bottom 3/4 inch NPT water connections
- Threaded for easy replacement
- Constantly hot water supply
Cons:
Takes up a few seconds for water to heat up
3. Stiebel Eltron Tempra 24 Plus Whole House Tankless Electric Water Heater
Features:
- No standby lost
This unit only heats water when you use it, no extra water is wasted in such process, thus it appears no standby lost in using process, helps save much energy and heating bills for you.
- Exclusive advanced flow control
This Tempra Plus model of Stiebel features advanced flow control. If the demand for water exceeds the capacity, advanced flow control will automatically reduce the flow slightly to maintain a consistent temperature.
- Cost saver
Digital temperature control and high technology equipped helps save about 15-20% on hot water bills for you each month. Energy consumption reaches as high as 99%, thus nearly no waste occurs in the process
Pros:
- Digital temperature control
- Used widely for commercial property or home as well
- Built-in advanced flow control modules, to regulate the water pressure automatically
- High-level electronic parts and a reliable cover
- Quiet in using period, no mechanical switches
- Support full power modulation
Cons:
Difficult to install, need 240v power and heavy-duty wiring
4. Thermoflow Elex 24 Electric Tankless Water Heater
Features:
- Constant hot water supply
Activation flow of water is 0.6 gallons per minute, after heating, it is able to provide constant hot water for you. Able to support one or two bathrooms and multiple kitchen faucets the same time.
- 167 degrees F temperature
The temperature range of the unit is between 32 to 167 degrees F. Exclusive Electric Temperature Control keeps the temperature of water stay steady even if water flow varies up and down.
- The digital backlit LCD display
It is equipped with a digital backlit LCD display and touch screen, you can easily control the water temperature. Maximum temperature of handwashing is 32 degrees F, for the shower is 107 degrees F and maximum temperature of commercial application reaches 167 degrees F.
Pros:
- Energy and water-saving
- Compact design
- Constant temperature output
- Self-modulating technology
- Exclusive electric temperature control
Cons:
Perfect for small or middle-sized family
Features Of Whole House Electric Tankless Water Heater
1. Flexible installation spots
Different from gas and propane tankless water heaters, the electric type does not need venting kits in installation. So it can be installed anywhere you want, no matter indoor or outdoor. No gas pipe is needed either.
2. Fast heating time
Tankless electric water heater for the whole house use heats water quickly, you need only to wait for no more than 1 minute for hot water. And it will provide endless demanded hot water for you.
3. Less powerful
Electric tankless water heater, however, is less powerful than gas or propane types. It requires more electricity so the using costs may be a little higher than that.
Things To Consider On Choosing Best Whole House Electric Tankless Water heaters
1. Energy efficient
As we know, electric is served as the main power in providing constant hot water of heating machine. Thus it requires more electricity and the electric bill is much higher. Choosing a high energy-efficient tankless water heater will help you save much money on heating costs.
2. Water flow
Being a whole house tankless water heater, the water flow should be large enough to provide constant hot water for both bathrooms and kitchen faucets the same time. The average flow rate of whole house type should be between 3-8 gallons per minute at least. If you have a large family and needs to use more than three bathrooms and sinks simultaneously, you may need to get a higher large flow rate machine.
3. Safety features
Safety features should be the primary factor in choosing and is also the major judgment for the best quality tankless water heater. Most tankless water heaters are designed to get self-protection systems such as temperature lock, freeze protection, and self-modulating technology, etc. With these self-protection devices, you are able to use them safely all the time.
4. Installation spots
The whole house tankless water heater can be installed indoor and outdoor, determined by manufacturers’ suggestions and requirements. For outdoor installation, you should get one at least with freeze protection or rain protection, so it can last long in severe weathers.
5. Professional installation
Some of the electric whole house tankless water heaters are designed easy for installation, while some are difficult that only professional can deal. For professional installation, you need to consider the extra installation fee. But most experts believe that the service life of tankless water heater is largely depended on installation, so try to get one if you lack enough knowledge.
6. Warranty
Electric tankless water heater price is not a small deal, you do not want to buy a heater that can only be used for 1 or 2 years. Long and trustful warranty can help you save much money in maintenance and repair. Average warranty to the heat exchanger is 10-12 years.
Summary
| Best Type | Tankless Water Heater |
| The smallest and most compact one | EcoSmart ECO 27 Electric Tankless Water Heater |
| Perfect one for middle home use | Rheem RTEX-18 Electric Tankless Water Heater |
| Perfect for home use | Stiebel Eltron Tempra 24 Plus Tankless Water Heater |
For more high quality best whole house electric tankless water heaters, you can find on Amazon, and there will always be a large discount on Amazon, which saves much money for you.