The Rheem Water Heater Booster conveniently installs on the tank outlet water connection, with the option to mount on a nearby wall. It's a smart way to deliver more hot water when a tank alone can't keep up with the demand.
PERFORMANCE FEATURES
- Increases deliverable hot water up to 45%*.
- Saves Space: Compact design eliminates the need for a second water heater.
- High Efficiency: UEF up to .96 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand.
- Digital Display: Easy to read digital display shows the inlet and outlet water temperature, operation status, water flow (GPM) and electricity load percentage.
- Control Dial: Sets the activation and maximum temperature in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C).
- Vacation Mode**: Turns tank water heater off while the home is unoccupied, saving energy.
- Eco Mode**: Allows user to schedule Water Heater Booster operation and take advantage of off-peak utility rates saving money on energy bills.
- Freeze Protect**: Overrides vacation and eco modes if the ambient temperature drops below 60°F (15°C) to prevent damage.
*According to testing by an independent test agency, this product can increase hot water delivery by as much as 45% when tested to deliver hot water to a 1.5 GPM shower.
**Does not apply when used with a gas tank.
WARRANTY
Limited Warranty - 5 Years - Leaks, 1 Year - Parts. See Use and Care Manual for complete information.
Certifications & Sustainability
These products meet a stringent set of Rheem's internally defined sustainability standards.
Tested and certified by the Water Quality Association against NSF/ANSI 372 for lead free compliance.
Certifications include AHRI Certified, ETL US, and Intertek.
Unit Visual Description: The Rheem Water Heater Booster unit is shown with a digital display and a control dial. The unit dimensions are Height: 8.25 inches, Width: 12.75 inches, Depth: 3.75 inches.
TANKLESS ELECTRIC SPECIFICATIONS & MINIMUM REQUIREMENTS
| Specification | RTEX-AB7 (240V) | RTEX-AB7 (208V) |
|---|---|---|
| Power (kW) | 7.2 | 5.4 |
| Voltage | 240V | 208V |
| Total Unit Amperage (Amps) | 30 A Max | 26 A |
| Required Number of Dedicated Circuit Breakers | 30 A DP* | 30 A DP* |
| Phase | 1 | 1 |
| Uniform Energy Factor (UEF) | 0.96 | 0.96 |
| Required Wire (75° Insulation) | 10 AWG** | 10 AWG** |
| Water Connection | Inlet: 3/4" NPT female Outlet: 3/4" NPT male | Inlet: 3/4" NPT female Outlet: 3/4" NPT male |
| Dimensions (Inches) - Height | 8.25 | 8.25 |
| Dimensions (Inches) - Width | 12.75 | 12.75 |
| Dimensions (Inches) - Depth | 3.75 | 3.75 |
| Weight | 5.4 lbs. | 5.4 lbs. |
| Operating Pressure | Min: 35 PSI Max: 150 PSI | Min: 35 PSI Max: 150 PSI |
| Flow Activation Rate (GPM) | 0.3 GPM | 0.3 GPM |
Notes:
- *DP - Double Pole
- **AWG - American Wire Gauge
- See Use and Care Manual for specifications and minimum requirements for installation on gas tanks.
Installation Guidance
Electric Installation: The diagram illustrates the Water Heater Booster connected to the outlet of an existing electric tank water heater. It shows the cold water feed, hot water feed, electrical panel, and wiring connections. Wiring is provided with the unit.
Gas Installation: The diagram shows the Water Heater Booster connected to the outlet of an existing gas tank water heater. It includes cold water feed, hot water feed, venting, gas line, and electrical panel connections. A note specifies that wire is not included.
Mounting: The unit may be wall mounted if space over the tank is limited. Additional wiring may be necessary.
FITTING ADAPTERS
| 1/2" CF Connection | Fitting Adapter |
|---|---|
| For 3/4" Copper Tube INLET | 3/4" NPT Female |
| For 3/4" Copper Tube OUTLET | 3/4" NPT Male |
