Use the dimensions you want for the CC (cook chamber) and use the Pit Calc http://www.smokerbuilder.com/pitcalc/ to determine the FB (firebox) and vent size. If you're making a straight vertical, vs RF (reverse flow) don't worry about the stack length.
Thank you for the responses. I contacted Frank, and he said keep it on the board so others continue to learn from it.
My main question is the smoke race way, or path from the fire box to smoke chamber.
I remember our piglet having 2 ports on the back wall, but some of the builds I see have smoke and heat entering on all 3 side. How would the smoke work it's way through the insulation and into the cook chamber?
On that one the smoke/heat are only coming in on 2 sides and the exhaust is going out on the back wall, down low. So the insulation would never come in contact with the smoke.
jm2cw
Current Smokers: Backyard RF Offset and Hybrid RF Offset trailer rig with Cowboy cooker and fish fryer, always room for more........
The first bottom is the sides and back wall, then the next has the FB bottom the center walls and the top and door sharing the back wall with the inside walls. The most outside is the skin over all outer parts
Current Smokers: Backyard RF Offset and Hybrid RF Offset trailer rig with Cowboy cooker and fish fryer, always room for more........
Question for all on this im going to be starting a Backwoods clone shortly i have between that and doing a gravity but just decided on the Backwoods for now. I know for the air inlet on the BW they have the cut out with the slider for the air to enter the firebox, do you think instead of that i would be ok with running a 2" ball valve instead. My thinking behind that is i can get get a tighter seal with that and probably adjust my air flow much better plus when i want to add on Guru just slap on the adapter and away we go. Just wondering what your guys thoughts would be on that. Thanks
I used the calculator for a cook chamber of 22x23x24- close to a g2 fatboy- it comes up with a fire box volume of 4048 in^3. by my calculations that makes the fire box 8" high. Is it okay to go 10" high? i assume the volume is the lowest recommended number?
On a vertical the calculator doesn't really work the same as on on offset because the CC and FB are really in the same chamber. Like an UDS only divided by an Baffle Plate. That is the way I see it.
jm2cw
Making memories.
Current Smokers: Backyard RF Offset and Hybrid RF Offset trailer rig with Cowboy cooker and fish fryer, always room for more........