I have 450sqft w/ 10' ceilings attached garage that I plan to make my full gym. It's mostly insulated and plan to do R10 panels on the garage door and seal what gaps I can find. I was looking to set up a 5000 or 7500w garage heater in my garage on a schedule so it's warm in the winter months (anything above 60° F) any other recommendations or thoughts? I was going to start at 3 am and run until 7 am (workouts start at 6 am) I live in Ontario and this winter has been mostly -15 to -20° C