I have an insulated garage that I've heated the past few years with a portable propane heater. It seems that I'm often running out and filling the 20lb tank. This winter, I switched over to the NewAir G73 Electric Garage Heater, which is working out great for me. It heats my 2 car garage just fine. I hired an electrician to run the 220, so other than that, setup was a breeze. I recommend this heater for anyone looking to heat their garage!