Rheem RTE-3 Water Heater with 1.5 GPM Flow Rate

- Item #: BCI1828974
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Electric On Demand Tankless Water Heater with 1.5 GPM Flow Rate

ENERGY-EFFICIENT DESIGN… low-cost operation. Why keep 40-50 gallons of water hot when you don’t need it? It’s expensive to continue to heat and re-heat water when you’re not home or not using it. Rheem’s tankless design offers convenience without the high cost of keeping water hot.

COMPACT SIZE… good things do come in small packages. Rheem Tankless is about one third the size of a conventional water heater. Sophisticated technology has reduced the size and increased the features and benefits. A digital display makes setting a precise water temperature, or monitoring the unit’s status, a snap! Its compact size will leave room for a water softener or extra storage.

Product Features:

  • .40 GPM Minimum Activation Flow Rate: Best in the industry, Rheem's units work very well with low-flow faucets, WaterSense faucets, and other applications which don't draw much water
  • On-unit temperature control: Gives users complete control of their tankless unit
  • LED Indicator Lights: Know exactly what your tankless water heater is doing with active element and standby mode LED indicators
  • Guardian OFW™ Overheat Film Wrap: This monitors the temperature of the heat exchanger and will shut the unit down if it exceeds a safe temperature. This is an exclusive feature of the Rheem tankless water heaters
  • Plumbing: Fits standard 1/2" NPT water connection
  • Construction: Rugged brass and copper heat exchanger for durability
  • Applications: Great for low flow single bathroom or utility sinks, boats, hospitals, offices, and anywhere else you may need hot water
  • Power Usage: 120 Volts - 3KW, modulating power
  • Maximum Flow Rate:1.5 GPM
  • Warranty: Parts Warranty: 1 Year; Heat Exchange Warranty: 10 Years

Additional Rheem Links

Our SKU: Rheem RTE-3

This product is listed under the following manufacturer number(s):

  • Rheem RTE3

*Denotes a finish or option that has been discontinued

Rheem RTE-3 Product Specifications

Specification Sheet
Installation Sheet
Approved for Commercial Use Yes
Energy Star Yes
Fuel Type Electric
Hardwired Yes
Indoor Installation Yes
Length 10.25
Low Lead Compliant Yes
Maximum Flow Rate 1.5
Maximum Temperature 140
Minimum Flow Rate .4
Outdoor Installation No
Plug In Yes
Water Connection 1/2"
Width 5.375

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Rheem RTE-3 Reviews

  • Will a 1.5 GPM kitchen faucet work with a gas tank-less?

    A. The Rheem RTE-3 requires a flow rate of .5 GPM to turn on. An eco-faucet with 1.5 GPM can be used with a tank-less heater.
  • What size circuit breaker is recomended?


    The Rheem RTE-3 runs on 3v and 29 AWG Wire. For further technical support, please call Rheem at 1-800-621-5622. They are better prepared to equipped you.

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