I will soon finish my new two car garage/workshop which measures 24X28X8. With winter coming I need to think about heating the space. Most of the time I'll leave my car outside. Two walls are insulated with R19, 3rd wall is common wall and 4th wall are the two doors. The floor is a concrete slab with plastic vapor barrier. Ceiling is R32. I have a dedicated 220v line for my table saw and a second dedicated 220v line for my 80 gal. compressor. I prefer not to use gas and welcome all ideas on space heating.
I also welcome any suggestions for a smoke alarm that can used in a workshop with a lot of sawdust. Thanks,