F1100turbo, I just threw some numbers out. Even at 30 minutes of every hour, that's still only 4 hours of furnace time vs. 8 hours of generator time. If we are trying to be thrifty, which one is cheaper?
When I am plugged in, I run a ceramic heater, and when really cold, less than 30, I kick in the heater in my AC unit. I have a toy hauler with plywood walls, no insulation in the floor or walls , and so far has worked. That equals 3000 watts electrical, or about 26 amps. Can't run anything else on my 30 amp service while this is going on.
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic
2008 Work and Play 18LT