I went with NG unit similar to Vid's pic this year keep it set at 15C, garage is on front of house it runs 2-3 times a day at most. Keeps it very comfortable, plus its super quiet. It's a double garage and the unit is a 45000 BTU Modine 'Hot Dawg'. Did it for about 1G installed. With 8 of my pins in the garage it also means I can play them year round.