Propane is only used for the stove, and, if you choose, the heating system. You can also run the heating system on 120v. The propane system takes 5.8 gallons or 24.36 pounds of propane. Generally, heavy users fill twice a year. We do not use a propane refrigerator since they require a level surface, and the propane must be turned on while traveling to keep food from spoiling, creating a safety hazard.