A garage heater is meant to provide heat to the area they are fit in. some people might consider using propane heaters which may allow them to open up windows for ventilation. Instead, Fahrenheat FUH54 does not put you in a condition of suffocation. Also, you can warmly enjoy the heat without opening windows in your garage. It also has a fan with it which allows passing on the suffocation out. It is an electric garage heater which is recommended on the contrary to the standard propane heaters.