Watts law, P= I times E

P= Watts
E= Volts
I= Amps


That means 120 volts times 15 amps comes to 1800 watts.
Honda recommends you don’t run their generators more then 80% for a constant duty. That means a 2300 watt generator would run your furnace. 80% of 2300 is 1840 watts. That’s just for the furnace, I’m sure you would want to run other things along with the furnace. Figure out total watts by using the formula above.



Edited by BobS (06/30/08 12:25 AM)
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