Here is one way to keep your gas furnace running with a generator. I added a 15A 125VAC outlet and an additional isolation switch for each of my 2 HVAC units. I can inject generator power thru the outlet and use the switch to isolate it from back feeding up the powerline (very important safety precaution). Switching off the corresponding breakers at the power distribution panel does the same, but I prefer having the redundancy.
With both unit's heat cycle ON and the air handler blower motor running, they were only drawing less than 400watts. Just about any generator will supply enough to keep them running - as long as I have NG coming to the house.
I can also feed generator power directly into the power distribution panel and use the house wiring instead of extension cords. Even with a manual transfer switch, there are some drawbacks and additional safety precautions with doing it that way. I like having the option to go either way.
Absolute best set up would be with a large stationary NG/Propane generator hooked up with an automatic transfer switch. Being able to run the whole house indefinitely on a quiet genny would be the bee's knees. Beaucoup $$$, of course.
With both unit's heat cycle ON and the air handler blower motor running, they were only drawing less than 400watts. Just about any generator will supply enough to keep them running - as long as I have NG coming to the house.
I can also feed generator power directly into the power distribution panel and use the house wiring instead of extension cords. Even with a manual transfer switch, there are some drawbacks and additional safety precautions with doing it that way. I like having the option to go either way.
Absolute best set up would be with a large stationary NG/Propane generator hooked up with an automatic transfer switch. Being able to run the whole house indefinitely on a quiet genny would be the bee's knees. Beaucoup $$$, of course.