How well do those Reddy Heaters work? The kind that run off Kero or diesel fuel. These are the big round ones you basically just fill with fuel and plg in. If the garage is a long way from being air-tight is it OK to run one of these for heat? Like many, I have maintenance to do that really can't wai till spring plus I want to get my old 58 220 going a little early this year. Next life, 1 bed, 1 bath house, 4 car heated garage with bath and shower, wet bar, lift, 50 cfm compressor and dancing girls.