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For the 2020 holiday season, returnable items shipped between October 1 and December 31 can be returned until January 31, 2021. You may be charged a restocking fee up to 50% of item's price for used or damaged returns and up to 100% for materially different item.

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Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray

4.5 out of 5 stars 360 ratings

List Price: $429.00
Price: $399.00 & FREE Shipping
You Save: $30.00 (7%)
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  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display
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Frequently bought together

  • Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray
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Customer Rating 4.5 out of 5 stars (360) 4.4 out of 5 stars (2699) 4.5 out of 5 stars (352) 4.5 out of 5 stars (198) 4.4 out of 5 stars (1891) 4.2 out of 5 stars (43)
Price $399.00 $307.90 $270.00 $485.99 $218.96 $345.99
Sold By ALCRSOAN Amazon.com ALCRSOAN Big Frog Supply Amazon.com Wanshi trade
Item Dimensions 18.25 x 3.50 x 14.50 inches 3.63 x 14.00 x 17.00 inches 12.63 x 8.25 x 3.63 inches 18.25 x 3.50 x 17.63 inches 3.75 x 8.00 x 11.50 inches 13.12 x 3.12 x 17.00 inches

Product description

This water heater offers quick, continuous hot water that is on demand for single point-of-use or multiple applications.Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement. Digital temperature control allows you to set your temperature in increments of 1°


Product information

Technical Details

Technical Specification

Additional Information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Important information

Wattage

18000 watts

Bulb Voltage

240 volts


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
360 global ratings
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Top reviews from the United States

Reviewed in the United States on April 5, 2018
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121 people found this helpful
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Reviewed in the United States on March 20, 2018
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117 people found this helpful
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Reviewed in the United States on January 20, 2019
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54 people found this helpful
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Reviewed in the United States on April 23, 2019
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29 people found this helpful
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Reviewed in the United States on October 14, 2017
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44 people found this helpful
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Reviewed in the United States on December 7, 2018
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27 people found this helpful
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Reviewed in the United States on October 16, 2017
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57 people found this helpful
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Top reviews from other countries

Amazon Customer
1.0 out of 5 stars Poor service
Reviewed in Canada on November 4, 2020
Verified Purchase
Shawn
5.0 out of 5 stars Simple to install.
Reviewed in Canada on March 27, 2019
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Andres Martinez Negrete
1.0 out of 5 stars Cero soporte de parte de Rheem
Reviewed in Mexico on February 7, 2019
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Amazon Customer
4.0 out of 5 stars So far so good
Reviewed in Canada on July 11, 2019
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