Rheem PROPH40 T2 RH400-SO: Energy Use & Operating Cost
At a glance (estimate)
- Operating cost (est.)
- $159.43/yr
- Energy use
- 859 kWh/yr
- Type
- water heater
- ENERGY STAR
- Yes
Cost is an estimate. Operating cost is an estimate, computed from each model's measured annual energy use at the EIA U.S. national-average residential electricity rate (18.56 ¢/kWh, March 2026). Your actual cost depends on your local utility rate and how you use the appliance. Verify current price and exact specs with the retailer. How we compute this.
The Rheem PROPH40 T2 RH400-SO is an ENERGY STAR certified Hybrid/Electric Heat Pump water heater. It uses about 859 kWh/yr of electricity. At the U.S. national-average residential electricity rate, that works out to an estimated $159.43 a year to run. Energy use is the measured figure from the ENERGY STAR certification; the cost is computed so you can compare it against other models on the same basis.
Specifications matter alongside running cost. Its capacity is about 36.0 gallons. This page is a spec-and-cost comparison, not buying, installation or repair advice; confirm exact dimensions and current pricing with the retailer before you buy.
| Spec | Value |
|---|---|
| Capacity | 36.0 gallons |
| Width | 20.3 in |
| Height | 62.3 in |
| UEF | 3.83 |
What drives this number
Energy use is the measured ENERGY STAR figure; the dollar cost is computed. Operating cost is an estimate, computed from each model's measured annual energy use at the EIA U.S. national-average residential electricity rate (18.56 ¢/kWh, March 2026). Your actual cost depends on your local utility rate and how you use the appliance.
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