Been using the heater for about a month since I fixed the leak... so I go out to the garage, turn it on setting 2, walk back in, grab a beer from the fridge, open the beer, take a sip, put a second beer in my pocket, walk back out to the garage and its warm enough to work with my coat off, speaking about the few cold days we have had, I know there hasn't been many. I will update once we get to colder weather... might take drinking the entire beer before my garage is ready! but we will see.