Portable gas, oil, and kerosene heaters provide warmth in cold areas and may be moved as heating needs change. They heat nonheated spaces like construction sites and tents, or they supplement existing heating systems for personal heating in warehouses, garages, and workshops. Portable gas heaters connect to a natural gas line or use a propane tank for fuel. Portable oil and kerosene heaters are powered with fuel oil and kerosene, and they have a fuel tank for storage.