If you have mechanical aptitude and common sense, this is a breeze to install. I used an Xbox 360 power supply for 12v hookup (google it, very easy to convert). Keeps my 28x26x11 attached insulated garage warm enough to comfortably work in a hoodie. I still use a propane salamander style heater for 10 minutes at first to take the chill off quicker, but then the diesel heater keeps it nice with no fumes! I would imagine a smaller space would really be toasty! May order a second one to vent to the next window, then I'll be cookin! Also rigged it so no permenant mods to the garage so I can reuse these in case we move or I build another shop. Now has me considering the 7k lb lift that is much cheaper than the bendpak quick jack!.