Just bought this smoker and it doesn't get very hot with an extension cord. I have a thick 6 foot cord with it I get like 150 degrees, straight into the wall socket I get 210. These temps are what I got when I cured it, so I'm thinking once I add meat and water in the pan I'll be lucky to get 120 degrees. It is a bit windy out today but I have it sheltered from the wind pretty much. Any ideas?