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Electric Tankless Water Heaters

To determine if an Electric Water heater is for you:

Temperature Rise: Subtract the incoming water temperature from your desired output temperature. 

Flow Rate: List the number of hot water devices you expect to use at any one time. Then, add up their flow rates (gallons per minute). This is the desired flow rate you'll want for the demand water heater. 

Therefore, to size a demand water heater, you need to determine the flow rate and the temperature rise you'll need for its application 

If it will not produce the desired flow rate and temperature rise to get to a comfortable hot water handwashing temp. of 105°F, then choose another model with more kW and amps, and ensure that you can supply it with the required electrical capacity.

 

Determining which tankless Electric Water Heater can be a difficult choose. Visit our blog to select a model that will suit your needs.


Choosing the right Tankless Electric Water Heater for your home.

  •

    Rheem - RTEX-36 - 36kw Tankless Electric Water Heater

    Rheem
    $ 825.00 - $ 825.00
    $ 825.00
    $ 825.00 - $ 825.00
    $ 825.00

    Spec Sheet Install Manual Choosing the right Tankless Electric Water Heater for your home. Overview Professional Classic® tankless elect...

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    $ 825.00 - $ 825.00
    $ 825.00
    $ 825.00 - $ 825.00
    $ 825.00
  • White electronic water heater with brass connectors on a white background
    Eemax - EX190TC 19kW Electric Tankless Water Heater - - Mechanical - Big Frog Supply

    Eemax Series Two EX190TC Tankless Electric Water Heater | 19kW 240V Thermostatic

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 622.99
    $ 622.99 - $ 622.99
    $ 622.99

    Eemax Series Two EX190TC Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: EX190TC Product Details The Eemax EX190TC Series Two i...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 622.99
    $ 622.99 - $ 622.99
    $ 622.99
  • Diagram of a heating system with labeled components and step-by-step process on a white background.
    Eemax water heater on a white background

    Eemax HomeAdvantage II HA018240 Tankless Electric Water Heater | 18kW 240V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 449.00
    $ 449.00 - $ 449.00
    $ 449.00

    Eemax HomeAdvantage II HA018240 Whole-Home Tankless Electric Water Heater Brand: Eemax SKU: HA018240 Product Details The Eemax HA018240 HomeA...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 449.00
    $ 449.00 - $ 449.00
    $ 449.00
  • Side View of Tankless auto booster on white background
    A compact Eemax hot water heater booster with a digital user interface, power supply connectors, and branding.

    Eemax AutoBooster HATB007240 Tankless Water Heater Booster | 7.2kW 240V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 332.00
    $ 332.00 - $ 332.00
    $ 332.00

    Eemax AutoBooster HATB007240 Electric Water Heater Top-Mount Booster Brand: Eemax SKU: HATB007240 Product Details The Eemax AutoBooster HATB0...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 332.00
    $ 332.00 - $ 332.00
    $ 332.00

  • Chronomite - SR-20L/240 - HTR 240-Volt 20-Amp SR Series Instant-Flow Low Flow Tankless Water Heater

    Chronomite
    $ 240.33 - $ 240.33
    $ 240.33
    $ 240.33 - $ 240.33
    $ 240.33

    Install Manual Choosing the right Tankless Electric Water Heater for your home. Chronomite electric tankless water heaters are the space-saving ...

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    $ 240.33 - $ 240.33
    $ 240.33
    $ 240.33 - $ 240.33
    $ 240.33

  • Eemax SPEX4208 FlowCo 208V Tankless Electric Water Heater | 4.1kW

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 237.69
    $ 237.69 - $ 237.69
    $ 237.69

    Eemax SPEX4208 FlowCo Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX4208 Product Details The Eemax SPEX4208 FlowCo is a h...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 237.69
    $ 237.69 - $ 237.69
    $ 237.69

  • Eemax SPEX35 FlowCo 240V Tankless Electric Water Heater | 3.5kW

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 237.69
    $ 237.69 - $ 237.69
    $ 237.69

    Eemax SPEX35 FlowCo Non-Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX35 Product Details The Eemax SPEX35 FlowCo is an ul...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 237.69
    $ 237.69 - $ 237.69
    $ 237.69

  • Rheem - RTEX-18 - 18kw Tankless Electric Water Heater

    Rheem
    $ 449.00 - $ 449.00
    $ 449.00
    $ 449.00 - $ 449.00
    $ 449.00

    Spec Sheet Install Manual Choosing the right Tankless Electric Water Heater for your home. Overview Professional Classic® tankless electric wa...

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    $ 449.00 - $ 449.00
    $ 449.00
    $ 449.00 - $ 449.00
    $ 449.00

  • Rheem - RTEX-08 - 8kw Tankless Electric Water Heater

    Rheem
    $ 245.00 - $ 245.00
    $ 245.00
    $ 245.00 - $ 245.00
    $ 245.00

    Spec Sheet Install Manual Choosing the right Tankless Electric Water Heater for your home. Overview Professional Classic® tankless electric wat...

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    $ 245.00 - $ 245.00
    $ 245.00
    $ 245.00 - $ 245.00
    $ 245.00

  • Rheem - RTEX-06 - 6kw Tankless Electric Water Heater

    Rheem
    $ 189.00 - $ 189.00
    $ 189.00
    $ 189.00 - $ 189.00
    $ 189.00

    Spec Sheet Install Manual Choosing the right Tankless Electric Water Heater for your home. Overview Professional Classic® tankless electric wat...

    View full details
    $ 189.00 - $ 189.00
    $ 189.00
    $ 189.00 - $ 189.00
    $ 189.00
  • White water heater with digital display and control panel on a white background
    White water heater with digital display and control panel on a white background

    Stiebel Eltron Tempra 20 Plus Electric Tankless Water Heater | 19.2 kW

    Stiebel Eltron
    $ 729.00 - $ 729.00
    $ 729.00
    $ 729.00 - $ 729.00
    $ 729.00

    Stiebel Eltron Tempra 20 Plus Tankless Electric Water Heater Brand: Stiebel Eltron SKU: TEMPRA 20 PLUS Product Details The Stiebel Eltron Tem...

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    $ 729.00 - $ 729.00
    $ 729.00
    $ 729.00 - $ 729.00
    $ 729.00
  • White Eemax water heater on a white background
    White water heater with Eemax logo on a white background

    Eemax LavAdvantage SPEX55T Tankless Electric Water Heater | 5.5kW 240V Thermostatic

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 308.43
    $ 308.43 - $ 308.43
    $ 308.43

    Eemax LavAdvantage SPEX55T Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX55T Product Details The Eemax SPEX55T LavAdvanta...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 308.43
    $ 308.43 - $ 308.43
    $ 308.43
  • Tankless White water heater on white background with flow co on the front
    Tankless White water heater on white background

    Eemax HomeAdvantage II HA011240 Tankless Electric Water Heater | 11kW 240V SPEX75 FlowCo 240V Tankless Electric Water Heater | 7.5kW

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 260.36
    $ 260.36 - $ 260.36
    $ 260.36

    Eemax SPEX75 FlowCo Non-Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX75 Product Details The Eemax SPEX75 FlowCo is a hig...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 260.36
    $ 260.36 - $ 260.36
    $ 260.36
  • White Eemax water heater on a white background
    White water heater with Eemax logo on a white background
    Sold out

    Eemax LavAdvantage SPEX55T-ML Multi-Lav Tankless Water Heater | 5.5kW 240V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 281.99
    $ 281.99 - $ 281.99
    $ 281.99

    Eemax LavAdvantage SPEX55T-ML Multi-Lavatory Tankless Electric Water Heater Brand: Eemax SKU: SPEX55T-ML Product Details The Eemax SPEX55T-ML...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 281.99
    $ 281.99 - $ 281.99
    $ 281.99
    Sold out

  • Rheem - RTEX-24 - 24kw Tankless Electric Water Heater

    Rheem
    $ 582.59 - $ 582.59
    $ 582.59
    $ 582.59 - $ 582.59
    $ 582.59

    Spec Sheet Install Manual Choosing the right Tankless Electric Water Heater for your home. Overview Professional Classic® tankless electric w...

    View full details
    $ 582.59 - $ 582.59
    $ 582.59
    $ 582.59 - $ 582.59
    $ 582.59

  • Rheem - RTEX-13 - 13kw Tankless Electric Water Heater

    Rheem
    $ 365.00 - $ 365.00
    $ 365.00
    $ 365.00 - $ 365.00
    $ 365.00

    Spec Sheet Install Manual Choosing the right Tankless Electric Water Heater for your home. Overview Professional Classic® tankless electric wat...

    View full details
    $ 365.00 - $ 365.00
    $ 365.00
    $ 365.00 - $ 365.00
    $ 365.00

  • Chronomite - SR-40/240 - HTR 240-Volt 40-Amp SR Series Instant-Flow Standard Flow Tankless Water Heater

    Chronomite
    $ 218.79 - $ 218.79
    $ 218.79
    $ 218.79 - $ 218.79
    $ 218.79

    Install Manual Choosing the right Tankless Electric Water Heater for your home. Chronomite electric tankless water heaters are the space-saving so...

    View full details
    $ 218.79 - $ 218.79
    $ 218.79
    $ 218.79 - $ 218.79
    $ 218.79
  • Tankless White water heater on white background with flow co on the front
    Tankless White water heater on white background

    Eemax SPEX55 FlowCo Tankless Electric Water Heater | 5.5kW 240V Thermostatic

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 237.69
    $ 237.69 - $ 237.69
    $ 237.69

    Eemax SPEX55 FlowCo Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX55 Product Details The Eemax SPEX55 FlowCo is a high-pe...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 237.69
    $ 237.69 - $ 237.69
    $ 237.69
  • Diagram of a heating system with labeled components and step-by-step process on a white background.
    Eemax water heater on a white background

    Eemax HomeAdvantage II HA011240 Tankless Electric Water Heater | 11kW 240V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 270.04
    $ 270.04 - $ 270.04
    $ 270.04

    Eemax HomeAdvantage II HA011240 Tankless Electric Water Heater Brand: Eemax SKU: HA011240 Product Details The Eemax HA011240 HomeAdvantage II...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 270.04
    $ 270.04 - $ 270.04
    $ 270.04

  • Stiebel Eltron Tempra 36 Plus Electric Tankless Water Heater 239225

    Stiebel Eltron
    $ 0.00 - $ 0.00
    $ 0.00
    $ 849.00
    $ 849.00 - $ 849.00
    $ 849.00

    Stiebel Eltron Tempra 36 Plus Tankless Water Heater 239225 Brand: Stiebel Eltron SKU: Tempra 36 Plus  Product Overview The Stiebel Eltron Tem...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 849.00
    $ 849.00 - $ 849.00
    $ 849.00

  • Stiebel Eltron Tempra 29 Trend Electric Tankless Water Heater 239217

    Stiebel Eltron
    $ 0.00 - $ 0.00
    $ 0.00
    $ 679.00
    $ 679.00 - $ 679.00
    $ 679.00

    Stiebel Eltron Tempra 29 Trend Tankless Water Heater 239217  Brand: Stiebel Eltron SKU: Tempra 29 Trend Product Overview The Stiebel Eltron T...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 679.00
    $ 679.00 - $ 679.00
    $ 679.00

  • Stiebel Eltron Tempra 24 Plus Electric Tankless Water Heater 239222

    Stiebel Eltron
    $ 0.00 - $ 0.00
    $ 0.00
    $ 699.00
    $ 699.00 - $ 699.00
    $ 699.00

    Stiebel Eltron Tempra 24 Plus Tankless Water Heater 239222  Brand: Stiebel Eltron SKU: Tempra 24 Plus  Product Overview The Stiebel Eltron Te...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 699.00
    $ 699.00 - $ 699.00
    $ 699.00

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