HEATSTAR 50,000 BTU Natural Gas Unit heater is the way to go (comes with interchangeable LP conversation kit) if you are looking to heat up to 1,250 sq. ft. for your garage, warehouse, or barn with a safe quiet and reliable heat source. Uses a built-in electric high velocity fan to pull cool air into the rear of the heater, across a heat exchanger, then forcing warm air into the surrounding areas. With a mounting clearance of just 1 in, the supplied brackets, external access to power, and thermostat connections - installation is a cinch. With the Durable Spark ignition and robust factory standard self diagnostic control module. These heaters only require 115V AC power. Comes complete with a wall mounted thermostat. Can be vented vertically or horizontallyBuy this natural gas heater and receive a Princess Auto gift card valued at $25. Gift card is redeemable on your next purchase. Limit one per transaction. Limited quantities. Available in-store only.