• United States(USD $)

Rheem 18kW 240V Tankless Electric Water Heater

$79.99 USD $0.00 USD
Save Energy, water and more with Rheem tankless water heaters
Rheem tankless electric water heaters provide continuous hot water where you need it.

Rheem Tankless Electric Water Heaters

Enjoy continuous hot water so you can do the dishes, wash the laundry, give the pets a bath and still have hot water for a relaxing shower.

Key Benefits

A Rheem tankless heats water only when you need it, so it uses less energy than a tank-type model.

Rheem tankless water heaters save money by using energy only when hot water is needed.

Rheem tankless gas models reduces water waste when the built-in water saving setting is enabled.


Saves Energy

Heats water only when you need it, so it uses less energy than a tank-type water heater, making this a sustainable choice.

Saves Money

Compared to a tank-type water heater, you could save up to 50% on water heating costs with point-of-use tankless electric water heaters or up to 34% with whole home models according to the Department of Energy (DOE).

Saves Water

When tankless electric point-of-use water heaters are installed close to where you need hot water, less water is wasted down the drain while waiting on hot water to reach the tap.

Saves Space

Point-of-use Rheem tankless electric models are compact, allowing them to be installed near a fixture (under a sink, in a bathroom or closet) freeing up valuable storage space in your home. Whole home models can be installed on the wall in a central home location.

Rheem tankless indoor models are powerful, energy efficient, and provide continuous hot water.

Additional Benefits

  • Powerful Performance – Our RTEX 24kW model provides up to 5.9 gallons of hot water per minute (GPM) in warm climates, enough for up to 2 showers and 2 sinks at once. Lower kW models also provide continuous hot water at lower flow rates (from 0.9 to 4.4 (GPM).
  • Energy Smart – RTEX models 8, 11, 18 & 24 utilize energy modulation, so they only use the amount of power required to heat the water you need.
  • On-Demand Hot Water – Point-of-use models, RTEX 4, 6, & 8 are installed near where you need hot water, so you get hot water fast.
  • Optimized Operation – Digital temperature control on the front of each model allows easy set point adjustment (RTEX-04 and RTEX-06 models display outlet temperature only).
  • No Venting - Tankless electric water heaters do not require venting, so they can be installed anywhere inside the home.

Technical Details