You will be intrigued in knowing that something as technical as a propane heater could be used in many purposes, domestic as well as industrial. Propane gas heaters can be used at construction sites, factories and shop areas amongst other places of commercial interest. It may seem that these heaters cannot be used for residential heating purposes, and you would be pardoned in thinking so, because most heaters made today are designed for commercial uses. In saying so, we cannot deny the fact that some gas heaters that can be used for residential purposes are on the anvil.