got me 2 ge 1000 watt hotplates for my drum and its 28 degrees outside, i guess,i am hot! insulated the outside of drum in shed and could only get 160 degrees. after 7 hrs internal temp of meat is only 140 and guess what? i am going hunting.so i bring summer sausages in the house and put on top rack of oven with bottom element set at 175 to finish off.where did i go wrong? there is no wind in shed and hotplates were as far from each other as possible. had the hotplate legs sitting on bricks to let air circulate under them but could not get temps up even with foil type insulation wrappad around barrel and sheets cut to cover lid.i also had the lid clamp in place.thanks for some tips. going hunting. dj