Kevin, I know that with my small shop this may not mean anything to you but the other day, I was out in my shop. I wear shorts and tee shirts most of the time and it was a mildly chilly day so I used my little Honeywell electric heater to keep the shop warm. I had on a long-sleeved flannel shirt and within a half hour, I had to turn the heater off and take off my shirt. And my shop has no insulation and has many air leaks. I guess what I'm saying is, a small electric heater does just fine if it isn't too cold outdoors and you can keep the heat inside. If you decide to partition your shop into a smaller area, you should be able to do what I am doing but maybe a bigger unit than the tiny one I have. I might add that in our MILD climate, I very seldom have to operate my heater. I am in much greater need of an A/C unit during the summers. Not because of the heat but because of the humidity. That is not going to happen though.