so with the wood shop off limits while insurance deals with the "smoke damage"

id like to try and get some work done on the car this winter/spring.

two big problems. no heat/ poor insulation and not a lot of space.

I have a crappy hanging plug in heater but it dosnt do crap. I cant leave the heater on all the time as the garage isn't fully insulated but would like something that will heat rather quickly without destroying the electric bill. id rather avoid big propane heaters due to fumes and small usable space,

dont want big dollar furnace unit because we are currently looking into garage additon or new place all together

any sugestions?