I have a Bradley and a pellet grill. I use to have a stick burner but someone offered me more money than I could say no to. But I have been looking at the GF's. What is the lowest temps you can get out of these? I make tons of sausage and beef sticks and cook low and slow. I would like to get 150 to start for 3-4 hours. Just not sure if the GF would go down this low. TIA Jeremy