Maybe something I wrote was misunderstood, but by energy savings I didn't mean it would make my bill cheaper. What I was referring to is some guy with a 20x20 shop told me it made no noticeable differences in his energy cost to heat the shop. I'm probably going to run a small camper heater or the smallest thing that can be suitable for my space because I don't have money to blow on anything elaborate. A/C is more of a luxury control, but I definetely want one that doubles as a dehumidifier, they actually aren't too badly priced. Right now in the summer, even in my "mild climate", my shed feels like a sauna. Hot and humid. Like I said, my expensive tool is still in packaging grease, and my hand tools are in the garage.