Wine-a-dor question about heat

[RWhisenand]

So, my wife and I are talking, and she mentioned that she was interested in buying me a wine-a-dor for some upcoming event, Father's Day etc. she also mentioned that since I smoke mostly in or around the garage, the garage would be a good place to put the wine-a-dor. Here's my question, my garage is insulated and has a heater, but we don't run it all winter due to energy costs, so, will a wine-a-dor be able to keep a good temperature even when down to single digits? I figure that the unit will give off some heat, but not sure if that will be enough.

Thanks guys,