A gas heater is essential for heating the room or outdoor space by burning the liquefied petroleum gas, natural gas, or butane-propane. When it comes to the indoor gas heater, it may be categorized as fueled and non-fueled. If you reside in a place that experiences bitter cold, you can use a portable heater to heat the room. A portable heater is a handy device that can instantly heat the room. Various kinds of gas heaters are in fashion; here are few.