Fb- 28x28x28. 2" insulated with rock wool.
Stack- plenum mounted, halfway between rf plate and top of chamber, 6" id x24
The major question we have is the half moon dimensions for the firebox.. Using the recommended numbers from Feldons yielded a weird size.
Experts please weigh in.
Tanks are the only thing set in stone. 5 tanks, 30" x7.5'