I just retired my Garrison II and had a Jotul F 3 CB installed. I am not at all happy with the heat the Jotul throws. It is far from the heat that was thrown by the Garrison. I have to burn it at 600 degrees to get the heat I got from the Garrison and that means constant stoking. I knew the firebox was smaller but the dealer indicated it would burn more efficiently and I would use less wood. Now he says I need to upgrade to a Castine. He knew the area I wanted to heat and he knew I had a Garrison. I am not a happy camper. Do I re-install the Garrison? Do I spend even more $ and buy the Castine? I may have posted this twice as I am trying to figure this system out....