We live in the Northwest. When we first built our house 15 years ago we had propane forced air system put in. That year we had a really bad storm and we went through a 250 gallon tank in 3 weeks. This cost us around 400.00 or so now it is up to 600.00 to fill the tank. I have been avoiding using the propane heater. We also had put in a heat pump and pellet stove. I am considering putting in an electric furnace, and have been slowly doing away with propane because of the cost.