I tried the Grill,empty, after I had received them, and I had a "huuuuge" Fire the Flames where shooting out of the Grill every where, and the Auger kept on feeding the Pellets in to the burning pot. I disconnected the Power and let him cool off. It took me almost awhile week to get somebody from the company to talk to, and got told, that the Unit's wiring was "wrong". The wiring change "I" had to do my self. Very poor service, I am very disappointed.