If you are staying in one place, see if there is a propane dealer who will deliver fuel. That way, you won't have to leave to fillup your propane. Electric heaters just will not do. The propane usually has a heater by the water. You will need a wrap on your hose that is outside. Or you can fill up the holding tank whenever you need. Your basement for the septic/water lines should be heated by more than the propane. We put an electric heater in there. You can also use a light bulb also if it gives enough heat. Propane usually makes windows sweat. Make sure you check your walls and wipe up the sweat on windows. It will damage your walls if allowed to run. (This takes a long time, but the water/sweat will get in walls)Good luck.
DH (Larry) <><