Thanks Connie for your efforts
Here are the calculators we found online for the relationshiop of intake air, volume of stove box, and stove pipe diameter and length.
You will need Excel or Open Office to use their .xls files:
http://webpages.charter.net/tomchism/BB ... lators.htm
http://webpages.charter.net/tomchism/Do ... alculator/
http://www.1728.com/diam.htm
http://www.online-calculators.co.uk/vol ... volume.php
I found online a "Google Doc" I used. Here it is:
https://spreadsheets.google.com/ccc?key ... l=en#gid=0
Here are "rule of thumb" ratios:
http://www.thesmokering.com/forum/viewt ... tion+stack