I converted my Brinkman Vertical Two Door Smoker to propane by ordering the parts from Brinkman. I am thrilled with the out come. I call it my Warming Oven but use it for baking, warming, and smoking.
I looked at Brinkman Vertical Electric Heavy-Duty Smoker & Grill parts and this is a list of what you need if the size is the same. Also is the Electric Insulated? The one that they used to made for Sears was, but it dosn't look like the Brinkman Vertical Electric Heavy-Duty Smoker & Grill is.
Thermostat Model # 072-5515-1 $39.95
Heating Element Model # 116-5515-0 $27.95
Water Pan Model # 114-5515-0 $12.95
Wood Chip Pan Model # 114-5515-1 $16.95
Wood Chip Pan Lid Model # 114-5515-2 $9.95
Handle - Wood Chip Pan Liner Model # 113-5515-2 $3.95