Data through June 2026
Water Heaters (Electric) · 44 certified models
Rheem
Rheem: 44 ENERGY STAR certified models in this data, running $143 to $257 a year at the U.S. average electricity rate — a median of $178, versus $222 across every certified water heaters (electric).
All certified models
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Questions, answered with the data
- How much does it cost to run Rheem water heaters (electric)?
- Among 44 certified models in this data, Rheem water heaters (electric) cost $143 to $257 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $178.
- Do Rheem water heaters (electric) cost more or less than the average electric water heater?
- The median model here runs $178 a year, 20% less than the $222 median across all certified water heaters (electric).
- What's the cheapest model among Rheem water heaters (electric)?
- The Rheem PROPH40 T0 RH120-M costs about $143 a year at the U.S. average rate (780 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.