Rheem 240V 4 Heating Chambers RTEX-36 Residential Tankless Water Heater

(7 customer reviews)


External digital thermostatic control with LED display (+/1 degree accuracy)
Most advanced self-modulation, adjust power to meet hot water demand
Durable Copper immersion four heating elements, field Serviceable
Simple installation – bottom 3/4 inch NPT water connections
Threaded for easy replacement, simple installation, digital temperature display.Amperage:150 amps.A max flow of 8.0 GPM

SKU: B01MZBQXP0 Categories: , Tag:


Rheem 240V 4 Heating Chambers RTEX-36 Residential Tankless Water Heater, GRAY

Professional classic tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications

Additional information


Item Weight

22.7 pounds

Product Dimensions




240 Volts

7 reviews for Rheem 240V 4 Heating Chambers RTEX-36 Residential Tankless Water Heater

  1. Hound Dog

    All of my plumber friends told me I needed a gas unit to get any consistent water volume but this unit has proved them wrong. I know of several they have installed since seeing this unit run in my house. I would say the only con with this unit is it requires four 40amp 220 service. Awesome unit, I would get another if I had to do it all again.

  2. Eduardo

    This little guy works perfect for my ranch house, two showers one kitchen sink at the same time hot water temperature never changedGreat purchase

  3. Amazon Customer

    I have solar and all electric house and works great. the heating time isn’t as fast but I use less watts. A good unit

  4. dp shopper

    Love it. Works awesome. And the space it saves.

  5. J Sanchez

    I tested this item and works perfectly for more than 3 showers, and 2 to 3 faucets open. Works like a charm!

  6. Ryan P.

    this is one of the best electric heaters in my opinion on the market. I installed for a few clients and I put one in my own house.

  7. Rodrigo A. Pastor

    Un excelente producto.

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