I have had charcoal and electric ECBs (el cheapo brinkman) and they both made some mighty fine Q. A friend in North Dakota wanted to get a smoker and I advised him to get something insulated because of the VERY cold temperatures up there. He got a MBES (master built electric smoker) and is very proud of his Q. He has had no problems with temperatures even in the winter at -30 degrees.
Brinkman water smokers (elec and charcoal)
Weber kettle grill
Uniflame Gold Stainless 5 burner propane grill / rotisserie
BBQ Grillware upright propane water smoker
A trench filled with wood coals and covered with chain link fence