best heater for shop?

[wordforge]

I'd go with a wood stove. It's what I have to use in my 150 year old 30' X 40' workshop with two foot thick adobe walls and crappy old windows. The stove gets the shop warm in about ten to twenty minutes depending on the wind outside.

[rgoot01]

I have an old Timberline wood stove in my garage at the house and for the garage it works great. The idea of an oil burning heater is a good idea too. These are what are in the shop at work. Granted most people don't usually have enough used oils laying around in there garage to keep it going all the time, however if you go to a local shop you can typically get all the used oil you want because they have to pay to have it hauled off, so long as they don't use that type of heater.

[F-100Ranger]

I was always told to keep any flame-type heaters or furnaces up high in a garage. The reason being gasoline fumes are heavier than air and will settle down around where a house heater has it's flame - or a torpedo heater etc.