I think I know a little something about cold. Grew up in Michigan and thought I knew what cold was, also worked in the shipyards in Maine but nothing compared to the cold I experienced in Philadelphia shipyards. I lived in the Hampton Roads area too for 5 years, I think it snowed once (maybe twice) and the locals were freaking out but I'll take a 'wet cold' over our current 16 degrees with 25 mpg winds. My garage also has one receptical beside the one the garage door is plugged into. My propane heater will suck down an 10 gallon tank in about 4 hours when its this cold out so I dont bother, plus its not insulated (yet).
Cool project Buck, look forward to seeing the progress.