Sitting during winter
What's best for winter storage? I winterized everything Blew the lines out etc.. However, our AS sits in the driveway. So I keep it plugged in. I keep an eye on the batteries and hook them up to the charger from time to time as the parasites drain them. I figured I would set the thermostat to 40 just in case. I was out of town for about 14 days and today I noticed the propane tanks are empty. I did not think the furnace would run that much. Guess I was wrong. Should I just leave it off and feel ok about it?