Grainger carries a large supply of gas space heaters. Portable gas heaters include propane and natural gas torpedo heaters, tank-top and convection construction heaters, infrared vent-free gas heaters, portable forced air heaters, gas-fired radiant heaters and more. Find Blue flame NG, blue flame NG/LP and propane heaters to help heat your construction site, outdoor area or indoor area when the power goes out. Provide a way to warm up when there's no central heat with gas space heaters from Grainger. Shop today!