harry - 12/5/2023 07:19 Fact of life - heat rises. Ceiling mounted hot-air heaters are a waste of money. Best garage heater is an old electric dryer, give up 30x30 inches of floor and kick out a couple of kw of forced-air heat at floor level. Bring a 10 degree 28x32 foot garage to 45 degrees in 15 minutes, to 55 degrees in 10 more minutes. Top of the dryer serves as a desk or table, and you can also dry clothes in it if you are awaiting parts for your laundry-room dryer.