What are the best electric tankless water heaters?

Hot showers at home once cost a lot of money and free space. Thanks to electric water heaters, you can get the warmest showers in the morning before going to work or school. We are looking for the best electric heater in the market. Think we missed your favorite heater? Please add it and comment. 

57 contributors
8 solutions
  1. 19

    #1Stiebel Eltron Tempra Plus 36

    Stiebel Eltron Tempra Plus 36

    Stiebel Eltron tempera 36 plus cost less and is less expensive to install since it does not require venting parts. This unit has a 36kW heating capability for large homes.

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    Harry Pierce
    Written on June 12, 2019
    "You can install it if you got some electrical and plumbing experience. If none, you will want the pros to setup the tempra box. Once everything is in place, the unit can heat more than two showers in our house. "
  2. 11

    #2Bosch WH27 Tronic 6000 C

    Bosch WH27 Tronic 6000 C

    The Bosch tankless water heater has a 26.9kW heating rate. You can install the unit outdoors as long as it is within nine square feet to the shower or faucet. The polymer element ensures consistent water temperature.

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    Harry Ramirez
    Written on June 12, 2019
    "Takes less than a minute to get a good stream of warm water coming out of the shower with my bosch heater. "
  3. 8

    #3EcoSmart ECO 27

    EcoSmart ECO 27

    This heater from Ecosmart uses (3) 9 KW standard Emerson electric heating elements with brass tops to prevent electrolysis. Without the need of a tank, the Eco 27 lets you save space in your home.


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    Leonardo Flores
    Written on June 12, 2019
    "When it comes to electric tankless water heaters for a whole house, I need a heater with high kWs. The Eco 27 fits the bill for its price. Though there were times when the heater fails to work, good thing those are just a few days in a month only. "
  1. 4

    #4Stiebel Eltron Tempra Plus 24

    Stiebel Eltron Tempra Plus 24

    The Tempra plus 24 has a 24kW of water heating capacity and can be installed anywhere. The electric switch within the unit will heat the water without producing any unbearable noise. 

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    Emma Wu
    Written on June 12, 2019
    "Out of other electric tankless water heaters, my eltron box is enough to give me a hot shower in the morning every day. It did cost a lot to have someone install it at our apartment. "
  2. 3

    #5Atmor AT-910-24TP

    Atmor AT-910-24TP

    The AT-910-24TP has 24kW and 240V rate of heating your water. The unit has an IP54 water resistant rating that makes it resist minor splashes, this lets you install the Atmor heater near your shower or bath.

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    Edison Fan
    Written on June 12, 2019
    "While the heater is working, getting the right temp is not possible. I can only get cold, warm, very hot water out of the machine. "
  3. 2

    #6SioGreen IR260

    SioGreen IR260

    SioGreen's unit can heat the water without a metallic element to prevent limescale deposits and corrosion. The heater is effective when placed less than 20 inches from the shower or bathroom.

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    Ignacio Solano
    Written on June 12, 2019
    "It took nearly half a day to setup up our siogreen heater since I need to tweak the wiring a bit. The heater can deliver constant warm water after setting it up. "
  4. 1

    #7Rheem RTE 13

    Rheem RTE 13

    Rheem's water heater uses a rugged brass/copper heat exchanger to ensure proper water heating. the unit has a 240V capacity and is Energy Star certified for its efficient use of electricity.

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    Xu Wang
    Written on June 12, 2019
    "Had this with me for a long time since it keeps giving our family hot baths every day. Installing or moving the heater is a pain though because of the plumbing and wiring. "
  5. 1

    #8Camplux BW158

    Camplux BW158

    The BW158 heats up to 6L of water per minute. The unit has several safety measures that shut down the heater if the flame fails to light up or if the machine gets too hot. 

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    Michael Griffin
    Written on June 12, 2019
    "As a gas heater, I can easily adjust the heat to the right temperature. Even with the safety shields in place, my wife is not comfortable with using gas to get a hot shower. "


Best What are the best electric tankless water heaters
1Stiebel Eltron Tempra Plus 36Household Items 19 Paid
2Bosch WH27 Tronic 6000 CHousehold Items 11 Paid
3EcoSmart ECO 27Electronics 8 Paid
4Stiebel Eltron Tempra Plus 24Household Items 4 Paid
5Atmor AT-910-24TPHousehold Items 3 Paid
6SioGreen IR260Household Items 2 Paid
7Rheem RTE 13Household Items 1 Paid
8Camplux BW158Household Items 1 Paid

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