Is that formula only for a certain type of smoker such as a charcoal one? What about Electric and propane smokers?
OK..... so I ran the numbers for a 48" x 20" CC and my calculator comes up with a 20" tall stack X 4" diameter...... I would make it 30" tall just because.... Pretty much what your 16" tall x 4" diameter...... Your engineers probably copied us.... HAHAHAHAHA...... our members make some darn good smokers....
Makes sense. So typically just adding some additional length as it most certainly will not hurt anything.Natural draft requires volume in a stack to reduce friction and pressure differential to facilitate draft... Pressure differential can be from height of stack and temperature differential of gasses in the stack and ambient temperature.......
I am making a smoker out tank that is 5ft long and 33" wide barrel. My firebox is mounted on one end. The heat is coming into barrel 7" from bottom. The firebox is 26"W x 20"L x 24"H. My question is my stack is at the other end of smoker so what size and long does it to be? And how high so it need to be?Natural draft requires volume in a stack to reduce friction and pressure differential to facilitate draft... Pressure differential can be from height of stack and temperature differential of gasses in the stack and ambient temperature.......
Picture please.. Maybe a 6" stack 40" above the CC...
Firebox is not used in the calculation... Only the CC volume....
I was wanting to build a offset smoke not a reverse flowI'm trying to figure out the size of the opening between the FB and CC... Ususlly it's a 1/2 moon shape following the curve of the CC.. and to the top of the FB.....
Read this tutorial... It will help explain stuff...
Standard Reverse Flow Smoker Calculator... by DaveOmak and others... Ready to use.. rev5.. 6/19/15.
Here's to "Alien BBQ" and the folks that first put the calculator together and "1728 Software Systems" for this great "Circle Calculator" and all the folks at "SmokingMeatForums", with a special shout out to Ribwizzard, that contributed their ideas and feedback while this thing was coming...www.smokingmeatforums.com
View attachment 446364
View attachment 446361View attachment 446363
View attachment 446362