I just moved into a house that has a CB 1200. I've adjusted the flame height, the flame is very high at the start. Slowly the flame will go down. I think it's going down too low. I will then adjust it then it's too high. I can't seem to find a happy medium. I had the stove cleaned and the pellets are the right size. I had a pellet stove at my other house, so I'm not new to them. Thanks for your help.