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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.

  •

    Eemax SPEX2412 FlowCo 120V Tankless Electric Water Heater | 2.4kW

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 255.99
    $ 255.99 - $ 255.99
    $ 255.99

    Eemax SPEX2412 FlowCo Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX2412 Product Details The Eemax SPEX2412 FlowCo is a p...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 255.99
    $ 255.99 - $ 255.99
    $ 255.99

  • Chronomite - SR-20L/120 - HTR SR Series Instant Low Flow Tankless Water Heater, small

    Chronomite
    $ 254.17 - $ 254.17
    $ 254.17
    $ 254.17 - $ 254.17
    $ 254.17

    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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    $ 254.17 - $ 254.17
    $ 254.17
    $ 254.17 - $ 254.17
    $ 254.17

  • 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
  • Mini tank side profile on white background
    White water heater with Eemax logo on a white background

    Eemax Mini-Tank EMT2.5 Electric Water Heater | 2.5 Gallon 120V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 181.74
    $ 181.74 - $ 181.74
    $ 181.74

    Eemax Mini-Tank EMT2.5 Point-of-Use Electric Water Heater Brand: Eemax SKU: EMT2.5 Product Details The Eemax EMT2.5 is a versatile, 2.5-gallo...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 181.74
    $ 181.74 - $ 181.74
    $ 181.74

  • Chronomite - SR-15L/120 - HTR 120-Volt 15-Amp SR Series Instant-Flow Low Flow Tankless Water Heater

    Chronomite
    $ 250.99 - $ 250.99
    $ 250.99
    $ 250.99 - $ 250.99
    $ 250.99

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

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    $ 250.99 - $ 250.99
    $ 250.99
    $ 250.99 - $ 250.99
    $ 250.99

  • Chronomite - SR-30L/120 - HTR 120-Volt 30-Amp SR Series Instant-Flow Low Flow Tankless Water Heater

    Chronomite
    $ 244.87 - $ 244.87
    $ 244.87
    $ 244.87 - $ 244.87
    $ 244.87

    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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    $ 244.87 - $ 244.87
    $ 244.87
    $ 244.87 - $ 244.87
    $ 244.87
  • Tankless White water heater on white background with flow co on the front
    Tankless White water heater on white background

    Eemax SPEX3012 FlowCo 120V Tankless Electric Water Heater | 3.0kW

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

    Eemax SPEX3012 FlowCo Non-Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX3012 Product Details The Eemax SPEX3012 FlowCo is...

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

  • Rheem - RTEX-04 - 3kw 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 wa...

    View full details
    $ 189.00 - $ 189.00
    $ 189.00
    $ 189.00 - $ 189.00
    $ 189.00
  • 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.
    Sold out

    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
    Sold out

  • 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
  • Sold out

    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
    Sold out
  • Sold out

    Eemax SPEX3512 FlowCo 120V Tankless Electric Water Heater | 3.5kW

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 196.00
    $ 196.00 - $ 196.00
    $ 196.00

    Eemax SPEX3512 FlowCo Thermostatic Tankless Electric Water Heater Brand: Eemax SKU: SPEX3512 Product Details The Eemax SPEX3512 FlowCo is a u...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 196.00
    $ 196.00 - $ 196.00
    $ 196.00
    Sold out

  • 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...

    View full details
    $ 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...

    View full details
    $ 245.00 - $ 245.00
    $ 245.00
    $ 245.00 - $ 245.00
    $ 245.00
  • Sold out

    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
    Sold out

  • Stiebel Eltron - SHC6MINITANK - 235089 SHC 6 Mini-Tank Electric Water Heater, 6 Gallon, 1300W, 120V, 15-1/8" W x 20-1/2" H x 15" D

    Stiebel Eltron
    $ 269.99 - $ 269.99
    $ 269.99
    $ 269.99 - $ 269.99
    $ 269.99

    Spec Sheet Install Manual SHC series mini-tank electric water heater is ideal for office buildings, stores, malls, warehouses, food trucks, resta...

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    $ 269.99 - $ 269.99
    $ 269.99
    $ 269.99 - $ 269.99
    $ 269.99

  • Stiebel Eltron - TEMPRA20PLUS - 223422 240V, 1 Phase, 50/60 Hz, 20 kW Tempra 20 Whole House Tankless Electric Water Heater

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

    Spec Sheet Install Manual Choosing the right Tankless Electric Water Heater for your home. OverviewThe Tempra® series has been redesigned comple...

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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
    $ 204.25
    $ 204.25 - $ 204.25
    $ 204.25

    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
    $ 204.25
    $ 204.25 - $ 204.25
    $ 204.25

  • Rheem - RTG20006DW - Main Control

    Rheem
    $ 74.06 - $ 74.06
    $ 74.06
    $ 74.06 - $ 74.06
    $ 74.06

    The Rheem RTG20006DW is a remote control (UMC-117). HVAC replacement part Rheem RTG20006DW. Get your system working properly once again with replac...

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    $ 74.06 - $ 74.06
    $ 74.06
    $ 74.06 - $ 74.06
    $ 74.06

  • Stiebel Eltron - SHC4MINITANK - 234046 SHC 4 Mini-Tank Electric Water Heater, 4 Gallon, 1300W, 120V, 12-5/8" W x 19-3/4 12-1/2" D

    Stiebel Eltron
    $ 239.00 - $ 239.00
    $ 239.00
    $ 239.00 - $ 239.00
    $ 239.00

    Spec Sheet Install Manual Stiebel Eltron 23406 Details If you're storing 30+ gallons of hot water in a traditional water heater when your applic...

    View full details
    $ 239.00 - $ 239.00
    $ 239.00
    $ 239.00 - $ 239.00
    $ 239.00

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