PHNIX 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
| Model | kWh/year | Cost/year |
|---|---|---|
| PHNIX KA06-50 | 837 | $176 |
| PHNIX KA06-80 | 1,200 | $252 |
- Refrigerators
- Freezers
- Washing machines
- Dishwashers
- Tumble dryers
- Room air conditioners
- Dehumidifiers
- Electric cooktops and ranges
- Televisions
- Computers
- Air purifiers
Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology