Planning stages of a 250 gallon RF Door and grate questions

[ghilljr]

Thank's guys .Now to get the tank in my shop and get to cutting.

 

[daveomak]

GH, morning........ Here is my "calculator" that is a take of from Feldons.....
250 gallons x 231 cu in / gallon = 57,750 cu in in the tank.... Run the numbers using this calc. and see what you come up with..... Also consider an opening directly across from the FB/CC opening to help with the heat moving from the FB to the CC..... Some folks have found that to be a good thing....
Using the circle calculator below, makes for more room in the smoker for cooking grates, is what I have found, when figuring the FB/CC opening...

The folks on this forum really do know how to build some of the best smokers you will find.... They are here to help and give great advice...

Dave

....click on pics to enlarge......

Bruno air inlets to firebox.jpeg

• daveomak
• Feb 7, 2014

smokehouse-firebox-5.gif

• daveomak
• Feb 7, 2014

Calculator and drawing.jpg

• daveomak
• Feb 7, 2014

http://www.1728.org/circsect.htm

 

[jmud]

Thanks Dave, I wasn't sure how big mine was for sure on the 250 I'm building. Used your numbers, worked out to 310 gallon, so 300 it is

 

[ghilljr]

Hello Dave,

I must agree,everybody here are great folks.I have seen a lot great builds here.I have read a lot of threads that have helped me tremendously.A big thank you to all.

Here is what I came up with.I not sure I understand the circle calculator.Do i need the look at the sector area or segment area for the opening?If i understand right I need to look at segment area.

   I do have plans for a air vent in the door.Is there a minimum size ?

circle cal.png

• ghilljr
• Feb 7, 2014

Link to BBQ Pit Calculator

 

[daveomak]

GH.... I guess I should clean up the calculator.... I use it to help folks.... makes it easier for me.....

Anywho.......... The FB/CC opening, as the smoker calculator figures, is the "segment" area in the circle calculator... I usually adjust the "segment Height ED" until the segment area ends up what the FB/CC opening is recommended..... or close......
Then, the Chord AB, is the width of the RF plate......

 

[ghilljr]

Thanks Dave

The calculator is great. I wanted to make sure i fully understood it ,before I made a mistake.