This vent-free unit is the ideal choice for safe, indoor supplemental heating, great for use in your home or cabin. This heater does not require electricity to operate, making this an excellent choice for everyday heating and emergency situations when the power goes out. This infrared wall heater burns with 99.9% efficiency and operates on liquid propane or natural gas.Shipping Dimensions: 29.02 H x 26.18 W x 11.22 DShipping Weight: 30.875 lbs