thanks for the info ill put that into my plans I am going to be building a house in Greencastle, Indiana I want to put the stove in the large open living area the house is going to have a large stair case in the middle of the house and open up to a big landing that all the bedrooms and bath room will open up to I also plan on putting vents in the celling that open up to the floor above to get more heat up stairs, as a back up im going to install a minisplit system through out the house but I don't think I will need to use it to heat as I am also going to have a wood burning cook stove in the kitchen that I will use during the fall and winter months. one thing that concerns me is that I am going to be using SIPs to build they make for a very air tight house should I plan for some makeup air from the outside? too many questions also can I make the feed port taller to allow for longer sticks?