I'm looking for a way to heat my 4-car garage. Two bays are for cars, one is for the mower and other items, one is my workshop.
I live in Minnesota, with very cold winters, so a heater is necessary to keep the shop usable in the winter and to keep the cars warm. I would like to have a heater/furnace that is on a thermostat, so that I can keep the garage ~ 35-40 degrees (F), but then crank it up to 50 or 60 when I want to work out there.
I've been doing some research, and it looks like a good option (efficiency and cost-wise) would be a corn heater, however, it looks like most of these are stoves intended to go in houses. The "shop" heaters I have seen online are huge commercial units designed to heat 3000+ square feet, whereas my garage is only ~1100 square feet. Any thoughts on where to start looking for a good shop-type corn heater that is thermostat controlled? Any ideas for other heating options that wouldn't involve running a new gas line out to the garage?