My garage is 12X60 with a 12X24 tee, insulated, and I use a propane salamander to heat in the beginning and a kerosene heater after it warms. Kerosene smells and propane will dry your nostrils out. In floor radiant heat would what I would install if I had the dough. Next garage/next life. Upstate NY winters are a bear. Did I mention I have a woodstove also?
Dan
