As of 2015, Dyna-Glo, DuraHeat, Frost Fighter and Master are a few of the brands that offer gas space heaters that run on propane or natural gas. Models vary widely in size and application, and they are available from retailers such as the Home Depot and Sears.
Dyna-Glo offers forced-air propane heaters, propane cabinet heaters, propane convection heaters, natural gas radiant heaters and several other models. Prices range from around $70 to upwards of $950 with heat output ranging from 18,000 to 650,000 British Thermal Units (BTU) per hour. Several models heat more than 2,000 square feet of room space. DuraHeat designs a number of space heaters for construction, outdoor and temporary workspace needs. These heaters include forced-air gas heaters, liquid propane convection heaters and propane tank top heaters. Each model includes DuraHeat's RSG technology that uses a heavy-duty ceramic igniter for a fast start.
Frost Fighter's portable gas heaters are ideal for diverse applications such as tent heating, industrial painting and building space heating, and they range from 90,000 to 1,500,000 BTU per hour. All models are designed to withstand harsh weather conditions. Master offers natural gas forced-air heaters, natural gas radiant heaters and propane convection heaters. The brand also offers kerosene and fuel oil models for a wide variety of applications.