Data through April 2026
Water Heaters (Electric) · 80 certified models
Rheem
Rheem: 80 ENERGY STAR certified models in this data, running $121 to $264 a year at the U.S. average electricity rate — a median of $169, versus $204 across every certified water heaters (electric).
The 50 most efficient (of 80)
Other brand facets
Questions, answered with the data
- How much does it cost to run Rheem water heaters (electric)?
- Among 80 certified models in this data, Rheem water heaters (electric) cost $121 to $264 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $169.
- Do Rheem water heaters (electric) cost more or less than the average electric water heater?
- The median model here runs $169 a year, 17% less than the $204 median across all certified water heaters (electric).
- What's the cheapest model among Rheem water heaters (electric)?
- The Rheem PROPH40 T2 RH375-15 costs about $121 a year at the U.S. average rate (643 kWh/yr) — the lowest certified figure in this group.
- What does the certified annual-kWh figure assume for water heaters (electric)?
- The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.