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18000W Electric Tankless Water Heater 208/240VAC

  • Zoro #: G8038880
  • Mfr #: RTEX-18


  • Standards: UL 499, CSA
  • Height: 18-1/4"
  • Amps AC: 75
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Rheem #RTEX-18 Specifications

  • Zoro #: G8038880
  • Mfr #: RTEX-18
Standards: UL 499, CSA Height: 18-1/4"
Amps AC: 75 Default Temperature: 120 Degrees F
Temp. Rise @ 6.0 GPM: Limited to Thermostatic Setting Item - Water Heaters: Electric Tankless Water Heater
Amps - Water Heaters: 75 Phase: single
Tank Capacity: 18 gal. Temp. Range - Water Heaters: 59 Degrees to 140 Degrees F
Voltage - Water Heaters: 208/240 Phase - Water Heaters: 1
Max. Flow Rate: 4 gpm Elements: Lead-Free Replaceable Cartridge Insert
Fuel Type: Electric Temp. Range: 59 Degrees to 140 Degrees F
Water Heater Application: General Purpose Depth: 3-1/2"
Min. Flow Activation: 0.30 gpm Water Connection: 3/4" NPT
Height to Top of Vent Connection: 18.25" Voltage: 208/240VAC
Residential / Commercial: Commercial/Residential Water Heater Design: Whole House
Mounting: Wall Vent Type: Tankless Electric
Pressure Range: 25 to 150 psi Temp. Rise @ 4.0 GPM: 31 Degrees F
Commercial / Residential: Commercial/Residential Height to Top of Heater: 18.25"
Temp. Rise @ 2.5 GPM - Water Heaters: 49 Degrees F Features: Endless Hot Water, Replaceable Heating Element, Adjustable Digital Temperature Display
Width: 14-1/2" Wire Size: 8 AWG
Watts - Water Heaters: 18,000 Item: Electric Tankless Water Heater
Temp. Rise @ 2.5 GPM: 49 Degrees F Country of Origin (subject to change): China


Without the need of a water storage tank, electric tankless water heaters can be used in a variety of environments. Take a look at the features for Rheem Electric Tankless Water Heater. Voltage: 208/240VAC, Phase: 1, Watts: 18000.

Restrictions and Compliance

WARNING : Cancer and Reproductive Harm -
This product has been certified by a third party to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable (human consumption - drinking and cooking) and non-potable water applications (non-human consumption).

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