Welcome to the forum Boggler. The Bradleys have a 500 watt heater that can struggle with a large load.There are a number of things that can help,bring the food to room temp before starting your smoke,a brick or two in the bottom of the cabinet can help hold the heat, keep the smoker out of the wind, keep the vent open, if closed it will trap moisture in the cab and cool it down especially with poultry. A second element is an option but in my experience not necessary, my original is wrapped in a suit of hot water tank insulation and lives in a cabinet and I've never had a problem with heat. There are others here that swear by the second heater mod so hopefully they can help with that.