I have a standard full sized fridge in my detached garage. During the summer I use it to ferment my brews with a temp controller.
I am concerned about using the fridge during the winter. Since the garage is detached the temp in there is usually the same as outdoors. This means that the days where it is 15-20F outside it will also be the same temp in the garage.
I thought about the light bulb trick or even one of These fridge heaters.
So does anyone have any ideas about using the fridge in the freezing winter temps?