Data through April 2026
Water Heaters (Electric) · 8 certified models
Ariston
Ariston: 8 ENERGY STAR certified models in this data, running $160 to $243 a year at the U.S. average electricity rate — a median of $200, versus $204 across every certified water heaters (electric).
All certified models
| # | Model | kWh/yr | $/yr (US avg) |
|---|---|---|---|
| 1 | Ariston ARIHPWH-50-T | 848 | $160 |
| 2 | Ariston ARIHPWH-50 | 867 | $163 |
| 3 | Ariston ARIHPWH-40 | 907 | $171 |
| 4 | Ariston ARIHPWH-40-T | 915 | $172 |
| 5 | Ariston ARIHPWH-80-T | 1,210 | $228 |
| 6 | Ariston ARIHPWH-65-T | 1,225 | $231 |
| 7 | Ariston ARIHPWH-80 | 1,238 | $233 |
| 8 | Ariston ARIHPWH-65 | 1,289 | $243 |
Other brand facets
Questions, answered with the data
- How much does it cost to run Ariston water heaters (electric)?
- Among 8 certified models in this data, Ariston water heaters (electric) cost $160 to $243 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $200.
- Do Ariston water heaters (electric) cost more or less than the average electric water heater?
- The median model here runs $200 a year, 2% less than the $204 median across all certified water heaters (electric).
- What's the cheapest model among Ariston water heaters (electric)?
- The Ariston ARIHPWH-50-T costs about $160 a year at the U.S. average rate (848 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.