just wondering how u guys run your acclaim. Are u closing the secondary damper? I've been fiddling with mine. My woods fairly well seasoned. I don't have a moisture metre yet. I'm burning ash, hard maple, linden, cherry, polar and red oak which is only one season old. Right now I'm leaving the secondary open and just leaving the primary open a crack. My glass is staying clean however I can only achieve about a 6 hour burn time with a good load of wood. Is this normal? In order to use my secondary damper I have to leave the primary opened half or my glass gets dirty.