Garage heater problems!!

When the t'stat shuts the heater off it first shuts off the burners and lets the fan run for a minute or two to cool down the heat exchanger. if you just kill the power the burners and fan shut off at the same time and could over heat the exchanger and limit switches. I'm sure it will be fine for a couple of days, but you will want to get one soon so it will operate properly. nothin like a heated garage for a gearhead! Merry Christmas.