How much does a furnace blower cost to run?

The furnace blower motor runs 15–40 minutes per heating cycle, consuming 300–500 watts during those periods. In cold climates, it may run dozens of times per day, adding up to meaningful energy use.

Typical running cost (18.83¢/kWh, U.S. average, 2026-04)

Basis	Cost
Per hour (while running, 500 W typical)	$0.094
Per day (6 h/day, 7/7 days)	$0.56
Per month	$17.20
Per year	$206.33
Hourly range (small 400 W – large 800 W)	$0.075 – $0.15

Save: Set your thermostat a few degrees lower and close vents in unused rooms to reduce the number and duration of heating cycles.

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