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Professional Classic Series Tankless Electric RTEX-13 kW
MODEL RTEX-13
Heating Chamber - 5 Years
Parts - 1 Year
- UEF up to .96
- Flow rate 1.3 - 2.3 GPM
- Durable, lightweight engineered polymer shell does not rust or corrode.
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
SKU RTEX-13
Model Professional Classic Tankless Electric RTEX-13
GPM 2.3
High Efficiency Yes
Minimum Flow GPM 1.3
Maximum Flow GPM 2.3
Professional Classic® tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications
Performance 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)
- 99.8% Energy efficient
- Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement
- Simple Installation
- Copper immersion heating elements improve the thermal performance providing better temperature control and faster recovery of hot water
- Designed to be mounted in an upright position with the inlet and outlet water connections on the side of the unit
- Venting is not required to operate, simplifying the installation process compared to a gas tankless water heater
- Warranty 5 Years - Leaks, 1 Year – Parts
- Standard Hand Sink – 0.5 GPM
- Kitchen Sink – 1 to 2 GPM
- Dishwasher – 1 to 2 GPM
- Washing Machine – 1 to 1.5 GPM
- Water-Saver Shower Head – 1.5 GPM
- Standard Shower Head – 2.0 GPM
Average Gallons Per Minute (GPM) based on 2010 Plumbing Standards
| MODEL NUMBER | MAX FLOW (GPM) |
| RTEX-08 | 1.95 |
| RTEX-11 | 2.68 |
| RTEX-13 | 3.17 |
Heating Chamber - 5 Years
Parts - 1 Year
More Residential Rheem Products
Find additional documentation by viewing these related products.
Professional Classic Series Tankless Electric RTEX-08 kW
1.4-1.4 GPM
- UEF up to .96
- Flow rate 0.8 - 1.4 GPM
- Durable, lightweight engineered polymer shell does not rust or corrode.
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
Professional Classic Series Tankless Electric RTEX-24 kW
4.3-4.3 GPM
- UEF up to .94
- Flow rate 2.4 - 4.3 GPM
- Durable powder-coated shell with a galvanized steel backplate
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
Professional Classic Series Tankless Electric RTEX-3.5, RTEX-06 kW
- UEF up to 0.95
- Flow Rate up to 1.6 GPM (See specification sheet for the GPM on each model)
- Digital temperature control in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
- Two 0.35 GPM aerators are included for optimal temperature output and performance
Professional Classic Series: Tankless Electric RTEX-04T
- Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
- Flow Rate up to 0.25 GPM
- Digital thermostatic temperature controls in 1-degree increments ranging from80°F - 140°F (26°C - 60°C)
- Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
- Stainless steel heat exchanger reduces corrosion for long life
- Brass 1/2" NPT fittings located on the bottom for the inlet and outlet water connections
