Professional Classic Series: RTEX-04, RTEX-06
MODEL RTEX-04
Heating Chamber - 5 Years
Parts - 1 Year
- Push-button ON/OFF control with LED temperature display
- 3.5kW Model Flow Rate: up to 0.9 GPM
- 6kW Model Flow Rate: up to 1.5 GPM
- Bottom 1/2" NPT water connections
Models
SKU RTEX-04
Model Professional Classic Tankless Electric RTEX-04T kW
High Efficiency Yes
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, continuous hot water
- Compact and stylish
- 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
- Standard Hand Sink – 0.5 GPM
- Water-Saver Shower Head – 1.5 GPM
- Washing Machine – 1 to 1.5 GPM
- Kitchen Sink – 1 to 2 GPM
- Dishwasher – 1 to 2 GPM
Average Gallons Per Minute (GPM) based on 2010 Plumbing Standards
| MODEL NUMBER | MAX FLOW (GPM) |
| RTEX-04 | 0.9 |
| RTEX-06 | 1.5 |
Heating Chamber - 5 Years
Parts - 1 Year










More Residential Rheem Products
Find additional documentation by viewing these related products.
Performance Series Tankless Electric RETEX - 04T, 06T kW
- Saves Space – Up to 98% smaller than a standard electric water heater
- Saves Energy – Zero standby heat loss when installed at the point-of-use
- Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
- Durable copper sheathed heating elements are replaceable, easy to maintain and improves service life
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
- 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
- Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
Performance Series Tankless Electric RETEX - 04T, 06T kW
- Saves Space – Up to 98% smaller than a standard electric water heater
- Saves Energy – Zero standby heat loss when installed at the point-of-use
- Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
- Durable copper sheathed heating elements are replaceable, easy to maintain and improves service life
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
- 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
- Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
Performance Series Tankless Electric RETEX-8, RETEX-11, RETEX-13 kW
5-5 GPM
- UEF up to .96
- 8 kW model flow rate up to 2.0 GPM
- 11 kW model flow rate up to 2.7 GPM
- 13 kW model flow rate up to 3.2 GPM
- Digital thermostatic temperature controls ranging from 80°F - 140°F
- Copper heat exchanger
- Side ½” CF water connections
- Warranty 5 Years - Leaks, 1 Year – Parts


