Gas space heaters are ideal solutions when a localized area of a room needs to be heated or if centralized heating is too expensive an option. These heaters act as a supplementary source of heat to areas that are inadequately heated by central heating. The benefit of using a gas space heater is that it provides instant heat. A space heater works either on the principle of convection or radiant heating. The popular method of heating a room is convection. Here, warm air is circulated within the room. A radiation heater emits infrared radiation that helps in directly heating objects that lie in its path.