Shop Heat – Hot Air – Wood

Can I safely install a forced air wood burning furnace outside my shop and blow the hot air in? I was told I need a firestop years ago – I do not know what that is but understand it will stop a stray spark from entering the warm air stream from a hole in the fire box. I imagine my insurance agent is feeling a wedgie coming on right about now.
Special Thanks!
People and power tools run better when they’re plugged in!
Edited 10/10/2003 2:39:53 PM ET by hammersparks