Check attic fan electric cost, runtime, thermostat settings, ventilation issues, AC impact, and whether the fan is actually saving money.
Electric bill
$226
All-in rate
$0.246 per kWh
Best next check
Cooling hours
First signal
An attic fan, whole-house fan, or ventilation fan runs often during warm weather and the electric bill changed.
An attic fan can help some homes, but long runtime, poor settings, air leaks, or fighting the AC can reduce or erase savings. The fan cost should be compared with any cooling reduction.
Estimate fan cost from watts and runtime.
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Open pageShort answers for search visitors and bill-checking moments.
Yes. If it runs many hours or pulls conditioned air from the home, the fan can add cost or reduce cooling savings.
Compare daily kWh on similar weather days with and without the fan schedule, while watching AC runtime.