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Rheem RTEX-18 Classic 18 kW 4.4 GPM Tankless Electric Water Heater Indoor 240V New
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Product Overview
The Rheem RTEX-18 Performance Self-Modulating Tankless Electric Water Heater is an energy-efficient tankless water heater that delivers up to 5.9 GPM. The consistent temperature features a self-modulating technology that adjusts energy based on your hot water needs. With the electronic thermostatic temperature, you can easily read the incoming water temperature and control it in one-degree increments.
Brand new in box
1 year factory warranty
Manufacturer direct shipping from TX
Authorized Rheem dealer
Features
External digital thermostatic control with LED display (+/1 degree accuracy).
Most advanced self-modulation, adjusts 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.
Specifications
Model Number
RTEX - 18
Energy Source
Electric
Power (kW)
18
Voltage
240
Total Unit Amperage
75
Recommended Breaker Size
2 x 40 A Double Pole
Recommended Household Electrical Service Panel
150 AMPS
Phase
1
Uniform Energy Factor (UEF)
0.94
Required Wire (75C Insulation)
(2) 8 AWG
Water Connection
3/4" NPT
Number of Heating Chambers
2
Heat Exchanger
Copper
Operating Pressure
Min: 25 PSI. Max: 150 PSI
Flow Activation Rate (GPM)
0.3 GPM
Product Dimensions (D x W x H)
3.6 x 14 x 17 in.
Ship Weight (LBS.)
14.78
Package Contents
Rheem RTEX-18 Classic Tankless Water Heater
User Manual
Warranty
This item comes with a 12-year heat exchanger warranty for residential properties, 5-year heat exchanger warranty for commercial properties, 5-year warranty on parts and 1-year labor warranty.