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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 2.4kW tankless electric water heater detail
    Eemax FlowCo tankless electric water heater product image

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

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55

    Eemax SPEX2412 FlowCo Tankless Electric Water Heater, 2.4kW, 120V Brand: Eemax | SKU: SPEX2412 Product Overview The Eemax SPEX2412 FlowCo is a ...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55
  • Chronomite SR-20L/120 point-of-use tankless water heater product detail
    Chronomite SR-20L/120 SR Series Instant-Flow low flow tankless water heater

    Chronomite SR-20L/120 Instant-Flow SR Tankless Water Heater

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

    Chronomite SR-20L/120 Instant-Flow SR Tankless Water Heater Brand: Chronomite | SKU: SR-20L/120 Product Overview The Chronomite SR-20L/120 Ins...

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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 - 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
  • Eemax EX190TC electric tankless water heater product detail with brass connectors
    Eemax EX190TC Series Two 19kW 240V thermostatic tankless electric water heater

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

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 701.48
    $ 701.48 - $ 701.48
    $ 701.48

    Eemax EX190TC Series Two Tankless Electric Water Heater, 19kW, 240V Brand: Eemax | SKU: EX190TC Product Overview The Eemax EX190TC Series Two i...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 701.48
    $ 701.48 - $ 701.48
    $ 701.48
  • Eemax EMT2.5 mini tank water heater side profile
    Eemax EMT2.5 2.5 gallon 120V electric mini tank water heater

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

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 181.75
    $ 181.75 - $ 181.75
    $ 181.75

    Eemax EMT2.5 Electric Mini Tank Water Heater, 2.5 Gallon, 120V Brand: Eemax | SKU: EMT2.5 Product Overview The Eemax EMT2.5 is a compact 2.5-ga...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 181.75
    $ 181.75 - $ 181.75
    $ 181.75
  • Chronomite SR-15L/120 point-of-use tankless water heater product detail
    Chronomite SR-15L/120 120V 15A SR Series Instant-Flow low flow tankless water heater

    Chronomite SR-15L/120 Instant-Flow SR Tankless Water Heater

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

    Chronomite SR-15L/120 Instant-Flow SR Tankless Water Heater Brand: Chronomite | SKU: SR-15L/120 Product Overview The Chronomite SR-15L/120 Ins...

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    $ 250.99 - $ 250.99
    $ 250.99
    $ 250.99 - $ 250.99
    $ 250.99
  • Chronomite SR-30L/120 point-of-use tankless water heater product detail
    Chronomite SR-30L/120 120V 30A SR Series Instant-Flow low flow tankless water heater

    Chronomite SR-30L/120 Instant-Flow SR Tankless Water Heater

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

    Chronomite SR-30L/120 Instant-Flow SR Tankless Water Heater Brand: Chronomite | SKU: SR-30L/120 Product Overview The Chronomite SR-30L/120 Ins...

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    $ 244.87 - $ 244.87
    $ 244.87
    $ 244.87 - $ 244.87
    $ 244.87
  • Eemax FlowCo tankless electric water heater with FlowCo branding
    Eemax FlowCo tankless electric water heater front view

    Eemax SPEX3012 FlowCo Tankless Electric Water Heater, 3kW, 120V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55

    Eemax SPEX3012 FlowCo Tankless Electric Water Heater, 3kW, 120V Brand: Eemax | SKU: SPEX3012 Product Overview The Eemax SPEX3012 FlowCo is a 3k...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55
  • Rheem RTEX-04 3kW tankless electric water heater
    Sold out

    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
    Sold out
  • Eemax HomeAdvantage II tankless electric water heater installation diagram
    Eemax HA018240 HomeAdvantage II 18kW 240V tankless electric water heater

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

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

    Eemax HA018240 HomeAdvantage II Tankless Electric Water Heater, 18kW, 240V Brand: Eemax | SKU: HA018240 Product Overview The Eemax HA018240 Hom...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 449.00
    $ 449.00 - $ 449.00
    $ 449.00
  • Eemax HA027240 HomeAdvantage II tankless electric water heater

    Eemax HA027240 HomeAdvantage II Tankless Electric Water Heater, 27kW, 240V

    Eemax
    $ 584.34 - $ 584.34
    $ 584.34
    $ 647.93
    $ 647.93 - $ 647.93
    $ 647.93

    Eemax HA027240 HomeAdvantage II Tankless Electric Water Heater, 27kW, 240V Brand: Eemax | SKU: HA027240 Product Overview The Eemax HA027240 Hom...

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    $ 584.34 - $ 584.34
    $ 584.34
    $ 647.93
    $ 647.93 - $ 647.93
    $ 647.93
  • Eemax HATB007240 AutoBooster side view
    Eemax HATB007240 AutoBooster 7.2kW 240V tankless water heater booster

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

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 462.89
    $ 462.89 - $ 462.89
    $ 462.89

    Eemax AutoBooster HATB007240 Tankless Water Heater Booster, 7.2kW, 240V Brand: Eemax | SKU: HATB007240 Product Overview The Eemax AutoBooster H...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 462.89
    $ 462.89 - $ 462.89
    $ 462.89
  • Chronomite SR-20L/240 point-of-use tankless water heater product detail
    Chronomite SR-20L/240 240V 20A SR Series Instant-Flow low flow tankless water heater

    Chronomite SR-20L/240 Instant-Flow SR Tankless Water Heater

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

    Chronomite SR-20L/240 Instant-Flow SR Tankless Water Heater Brand: Chronomite | SKU: SR-20L/240 Product Overview The Chronomite SR-20L/240 Ins...

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    $ 240.33 - $ 240.33
    $ 240.33
    $ 240.33 - $ 240.33
    $ 240.33
  • Eemax SPEX4208 FlowCo 208V 4.1kW tankless electric water heater detail
    Eemax FlowCo tankless electric water heater product image

    Eemax SPEX4208 FlowCo Tankless Electric Water Heater, 4.1kW, 208V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55

    Eemax SPEX4208 FlowCo Tankless Electric Water Heater, 4.1kW, 208V Brand: Eemax | SKU: SPEX4208 Product Overview The Eemax SPEX4208 FlowCo is a ...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55
  • Eemax SPEX3512 FlowCo 120V 3.5kW tankless electric water heater detail
    Eemax FlowCo tankless electric water heater product image

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

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55

    Eemax SPEX3512 FlowCo Tankless Electric Water Heater, 3.5kW, 120V Brand: Eemax | SKU: SPEX3512 Product Overview The Eemax SPEX3512 FlowCo is a ...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55
  • Eemax SPEX35 FlowCo 240V 3.5kW tankless electric water heater detail
    Eemax FlowCo tankless electric water heater product image

    Eemax SPEX35 FlowCo Tankless Electric Water Heater, 3.5kW, 240V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55

    Eemax SPEX35 FlowCo Tankless Electric Water Heater, 3.5kW, 240V Brand: Eemax | SKU: SPEX35 Product Overview The Eemax SPEX35 FlowCo is a compac...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55
  • Rheem RTEX-18 18kW tankless electric water heater

    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 - 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
  • Rheem RTEX-06 6kW tankless electric water heater

    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

  • 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
  • Eemax EMT6 1.4kW electric mini tank water heater

    Eemax EMT6 Electric Mini Tank Water Heater, 1.4kW

    Eemax
    $ 259.45 - $ 259.45
    $ 259.45
    $ 259.45 - $ 259.45
    $ 259.45

    Eemax EMT6 Electric Mini Tank Water Heater, 1.4kW Brand: Eemax | SKU: EMT6 Product Overview The Eemax EMT6 electric mini tank water heater prov...

    View full details
    $ 259.45 - $ 259.45
    $ 259.45
    $ 259.45 - $ 259.45
    $ 259.45
  • 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
  • Eemax LavAdvantage tankless electric water heater product detail
    Eemax LavAdvantage tankless electric water heater front view

    Eemax SPEX55T LavAdvantage Tankless Electric Water Heater, 5.5kW, 240V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 343.28
    $ 343.28 - $ 343.28
    $ 343.28

    Eemax SPEX55T LavAdvantage Tankless Electric Water Heater, 5.5kW, 240V Brand: Eemax | SKU: SPEX55T Product Overview The Eemax SPEX55T LavAdvant...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 343.28
    $ 343.28 - $ 343.28
    $ 343.28
  • Eemax FlowCo tankless electric water heater with FlowCo branding
    Eemax FlowCo tankless electric water heater front view

    Eemax SPEX75 FlowCo Tankless Electric Water Heater, 7.5kW, 240V

    Eemax
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55

    Eemax SPEX75 FlowCo Tankless Electric Water Heater, 7.5kW, 240V Brand: Eemax | SKU: SPEX75 Product Overview The Eemax SPEX75 FlowCo is a 7.5kW,...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 264.55
    $ 264.55 - $ 264.55
    $ 264.55

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