Rheem RTEX-18 Professional Classic Electric Tankless Water Heater

RTEX-18, RTEX-24, RTEX-27, and RTEX-36 tankless electric water heaters are ideal for new construction builds and all applications in the home including point-of-use installation. The durable, compact design allows installation in tight spaces. In warmer climates, these models provide enough hot water to run multiple fixtures simultaneously. To select a unit that meets electrical and hot water gallons per minute (GPM) requirements, please use the sizing guide.

Applications:

• Whole-Home – Up to 4.4 GPM

• Standard Hand Sink – 0.5 GPM

• Washing Machine – 1 to 1.5 GPM

• Water-Saver Shower Head – 1.5 GPM

• Kitchen Sink – 1 to 2 GPM

• Dishwasher – 1 to 2 GPM

• Standard Shower Head – 2.0 GPM

• Bath Tub – ≥ 4 GPM

Features:

• Saves Space – Up to 93% smaller than a standard electric water heater.

• Saves Energy – Zero standby heat loss when installed near the point-of-use.

• More Hot Water – Up to 4 times the hot water delivery of a standard electric tank (per hour).

• High Efficiency – UEF up to .94 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand.

• Copper immersion heating elements fit into a multi-chamber design to improve the thermal performance providing better temperature control and faster recovery of hot water.

• Copper heat exchanger transfers heat fast and resists corrosion.

• Durable powder-coated shell with a galvanized steel backplate.

• Brass ¾" NPT located at the bottom for the inlet and outlet water connections provide strength and durability.

• Designed to be mounted in an upright position with the inlet and outlet water connections at the bottom of the unit for ease of installation.

• Venting is not required to operate, simplifying the installation process compared to a gas tankless water heater.

• Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C).

• Tested and certified by the Water Quality Association against NSF/ANSI 372 for lead-free compliance.

Specifications: