Keeping The Garage Warm

A quick search of the internet and you will find that there are a lot of different choices out there. First you need to figure out how big your garage is and how many BTU's it will take to heat it.  Electric garage heaters are one of the more common choices.  They are inexpensive to install and simple to operate, but can be rather costly depending on usage.  Electric heat is very clean and quiet and there is no need for a furnace or a boiler with this choice.

A wood burning stove and another good choice of garage heaters, though it requires a bit more maintenance and safety precautions, such as installing a safe distance from combustible materials. You will need to properly vent the stove and they do take some time to heat up, although a wood stove will tend to keep heating the area even after it is turned off. 

If your home is already served with natural gas then this could be be an option.  Even though natural gas garage heaters can be more costly up front, they are far less expensive than electric heaters for monthly use.  They also need to be installed near an exterior wall in order to provide proper ventilation.   Kerosene heaters are another alternative that requires proper ventilation.  They are 99% efficient in heating and practically odorless, only giving off fumes for a few minutes after they start up and shut down.  One gallon of kerosene has about the same heat output as an entire wheelbarrow of lumber.