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How many watts does a Gas Furnace Blower Fan use?
Running watts
800 W
Starting watts
2,350 W
Startup surge
+1,550 W
A Gas Furnace Blower Fan draws 800 watts continuously once it's running, but its motor needs a brief surge of up to 2,350 watts to start. A generator has to cover that starting surge, not just the running load, or the motor won't start. Runs the blower only — the furnace itself is fueled by gas/oil, not the generator.
Generators that can run this
- WEN 56235i1,900 W run · 2,350 W start · ~$430
- Predator 3500 Inverter3,000 W run · 3,500 W start · ~$900
- Champion 3400-Watt Dual Fuel Inverter (100263)3,100 W run · 3,400 W start · ~$850