Most garages are neither insulated well, nor wired for heating or air conditioning. In the summer, this is non a problem, as merely leaving the automatic door up, and maybe utilizing a fan is all that is needed to keep the garage comfortable.
In the winter, however, the garage can be miserably cold, to the point where one cannot stay inside it for very long without becoming thoroughly chilled. Raising the automatic door only allows more cold air to enter, thus adding to the problem.
There are, however, ways of heating a garage. These can range from small “space” heaters such as those used to warm up a chilly room placed close, but safely, to the work area, or larger units that will heat the entire garage.
Heating units can be electric or gas-powered. Electric ones only require being connected to the power source. If the unit is going to remain stationary, the householder may wish to have the power supply permanently connected to the main house current. Otherwise, all that is needed is a convenient electrical outlet.
Gas-powered heaters can have a tank that holds propane or other similar heating fuel. These units can be moved from place to place. Others, especially those which are to be left in one particular location, may be intentional so that they can be permanently connected to the home natural gas supply, if such a utility exists.
Homeowners should be very, very careful, however, to ensure that heaters ar in proper working order. Further, it may be a good idea to either raise the automatic a few inches or provide a means for fresh air to enter the garage. This will eliminate or drastically reduce any chance of deadly carbon monoxide gas building up, which can quickly kill a person.
To ensure the success of safely heating your garage, consulting a local heating contractor is always advised.