Commercial establishments such as hotels, motels, restaurants and hospitals use propane in the same way a homeowner does: for heating and cooling air, heating water, cooking, refrigeration, drying clothes, barbecuing and lighting. Industrial sites rely on it for space heating, brazing, soldering, cutting, heat treating, annealing, vulcanizing and many other uses. Petrochemical industries use propane as a feedstock to make such products as plastic bags.