The NewAir G56 garage heater is super. I live in the So CAL mountains at 6000 feet so my 2 car garage is in the 30-40's all winter. In 30 minutes I can do my wood working and in 45 I have to turn it down. The thermostat does an excellent job of controlling a comfortable temp. I highly recommend the G56 for your garage. Make sure you have a 240v wall plug and you'll be good-to-go. The jury is still out on energy efficiency.