First, I wanted to use this heater for my vintage 1964 VW Beetle. I have a "hotrod" race motor in it with custom exhaust headers which eliminate the stock heater boxes. I looked around on the internet and this looked like a viable solution. Installation was pretty easy, despite the weak instructions. It puts out a lot of heat, but is adjustable with the thermostat. It would easily heat a space much, much bigger than my car. I also replaced the fuel tank with one from a large riding mower, which I also found online and works better. I do recommend this heater for any mobile heating solution.MB