I use this in my garage shop and it's perfect for keeping the space comfortable to work in. The garage is hooked to my house HVAC but that really just keeps it's level enough so that I don't have to worry about materials getting ruined. When I'm going to be in the shop I can turn this on and in just a few minutes I have a super comfortable work environment. It's helping me spend more time out there and be more productive when I am out there! This product was provided to me for review.