Protected: 18KW Rheem Electric Tankless Water Heater



• Model # RTEX-18


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

Performance Features
•  On demand, consistent and endless hot water
•  Compact and stylish with digital temperature control in increments of 1°F ranging from 80°F to 140°F*
•  99.8% Energy efficient
•  Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement
•  Simple Installation
•  Digital temperature display
•  External controls to adjust temperature in increments of 1°F*

•  Whole-Home - up to 6 GPM
•  Water-Saver Shower Head - 1.5 GPM
•  Standard Shower Head - 2.0 GPM
•  Standard Hand Sink - 0.5 GPM
•  Kitchen Sink - 1 to 2 GPM
•  Bath Tub - >= 4 GPM
•  Dishwasher - 1 to 2 GPM
•  Washing Machine - 1 to 1.5 GPM (Average Gallons Per Minute (GPM) based on 2010 Plumbing Standards)

•  5-Year heating chamber and 1-year parts limited warranty. See Residential Warranty Certificate for complete information

Unique Features
•  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
•  Simple Installation - Bottom 3/4" NPT water connections

Specification Sheets

Additional information


Energy Star Certified


Model Number



There are no reviews yet.

Be the first to review “Protected: 18KW Rheem Electric Tankless Water Heater”

Your email address will not be published. Required fields are marked *

    Your Cart
    Your cart is emptyReturn to Shop