STEALTH Water heaters: energy use and running cost

The average model uses 1,080 kWh a year, which costs $227 a year at 21.0¢/kWh.

Most efficient models

ModelkWh/yearCost/year
STEALTH ACIQ-50G-HP-WH855$180
STEALTH ACIQ-80G-HP-WH1,240$261

Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology