ZAFRO 54091EWA1-8K-ZAZ: $85 a year to run

This model (Room air conditioners) uses 402 kWh of electricity a year, which costs about $85 a year and $845 over 10 years at 21.0¢/kWh.

Energy use
402 kWh
per year
Running cost per year
$85
21.0¢/kWh
Running cost over 10 years
$845
Efficiency rank
153 / 589

54 % less energy than the federal minimum standard.

Product details

TypeWindow
Cooling capacity (BTU/h)8100
RefrigerantR-32
ENERGY STAR Most EfficientYes
Available sinceSeptember 10, 2026

Compared with the average model (Room air conditioners), this one saves about $38 a year.

More efficient alternatives

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