Last night, I had an idea as I was reading about heat modifications. The thing that is the biggest problem is the ambient temperature below 70 degrees or so. What if you take the cover, cut it to fit the outside of the smoker so it is a snug fit. Cut out spots for the top smoke vent and the smoke generator. Cut the cloth so it will allow the door to open and sew in some velcro or a clip of some sort to re-attach it after closing the door. Then, use foil tape to tape and roofing heat cord to completely cover the outside. 80 feet of heat cord would be more than enough for the 6 rack BDS, and it would be an additional 400 watts of energy on the outside of the smoker. This heat jacket would keep the cold out and allow the element to do its job. Your thoughts are appreciated.