Hi i just installed a and avalon 745 which is the same as the pendelton. I works fairly well with my new 6" duraplus chimney although there seems to be almost too much draft. I have 22' of chimney. I did install a pipe damper but try to avoid using it due to lowering chimney temps and building creosote. My question is it seems to get hot easily and i dont know where it should cruise at. I only crack the air control and can keep it at 500 - 700 but just seems to get hot real fast. I did put a new door gasket in and it seems to be air tight. Any ideas where i should keep temps? Thanks for any help. Jason