i bought this heater for a job i was doing at work the space it was heating was 32ft x 10ft x 8ft the heat only took 5-10 mins of running on low to heat it you and the fuel useage was excellent better than i expected everyone i work with was wow about how well it work for its size i also used it at home in my one car garage thats 25ft x 14ft x 8ft there is no insalation in it and when the temp was in the teens i ran it on low and it took the chill of the inside the size makes it easy to store and is very light to carry the only down fall was the noise of the jet that you get with all forced air heaters but i deal with the noise than be freezing lol

The heater refused to stay lit when I pushed in the button even after five minutes. I would hold it in for 3 five-minute sessions before it would catch. Called the 800 number on the box and they sent a replacement which works fine. It's a nice size - can economize on propane on low or let it loose on high. High - 60k BTU - is the same rating as the furnace in this 1000 sf house and the Master kept the place warm enough to drywall in winter in Central New York for 2 days on 20 pounds. Have to watch out for carbon monoxide poisoning, of course.