I know a lot of people hate Vogelzgang here, but thats what I could afford,the colonial model, which is an epa approved insert, and I would appreciate any advice. I isnstalled this five days ago, and everything is working out pretty well, except for a lot of coals left after the burn. I dont know if it is because I am cutting the damper down too much, or if its the wood I am burning. I do not think its the wood, because I have been burning the same wood, which is ash, (the trees were dead before I cut and split it) in two other stoves, one is a jotul 602, the other another dreaded Vogelzgang. When burned in the other stoves, what I end up with is a lot more ash and very few coals, the coals I do end up with are much smaller. Any advice would be appreciated.