Smoker Build - How Big Firebox for 120 Gallon Smoker??

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MCPMartin
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Smoker Build - How Big Firebox for 120 Gallon Smoker??

Postby MCPMartin » Fri May 29, 2020 1:14 pm

Quick question - I'm building a 120 gallon smoker, and I'd like to know "the rule of thumb" (if one exists) for how big a firebox should be per the size of the smoker. I've read some guys use 20% and others say they just eye-ball it.
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Joe Mark
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k.a.m.
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Re: Smoker Build - How Big Firebox for 120 Gallon Smoker??

Postby k.a.m. » Fri May 29, 2020 1:50 pm

Welcome to the forum.
Here ya go I ran your numbers this is how I would proceed click on the link:
Link to BBQ Pit Calculator
On the exhaust go 24" instead of the recommended 20.55"
On the intakes if you go vertical horizontal slides go with three 6" tall x 2" wide.
On the firebox to cook chamber opening a half moon of 16" wide x 8" tall will work.
Always remember slow and steady wins the race.



My Hybrid cooker.
Competition trailer #2.
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MCPMartin
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Joined: Thu May 28, 2020 3:11 pm
Location: Dallas, TX
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Re: Smoker Build - How Big Firebox for 120 Gallon Smoker??

Postby MCPMartin » Wed Jun 03, 2020 12:17 pm

k.a.m. wrote:Welcome to the forum.
Here ya go I ran your numbers this is how I would proceed click on the link:
Link to BBQ Pit Calculator
On the exhaust go 24" instead of the recommended 20.55"
On the intakes if you go vertical horizontal slides go with three 6" tall x 2" wide.
On the firebox to cook chamber opening a half moon of 16" wide x 8" tall will work.


Thank you for the awesome link & information! There's a lot of great information there, and I appreciate it.
_________
Joe Mark
Dallas,TX
User avatar
k.a.m.
Chuck Wagon
Posts: 3045
Joined: Mon Jun 25, 2012 6:38 pm
Contact:

Re: Smoker Build - How Big Firebox for 120 Gallon Smoker??

Postby k.a.m. » Wed Jun 03, 2020 2:06 pm

MCPMartin wrote:
k.a.m. wrote:Welcome to the forum.
Here ya go I ran your numbers this is how I would proceed click on the link:
Link to BBQ Pit Calculator
On the exhaust go 24" instead of the recommended 20.55"
On the intakes if you go vertical horizontal slides go with three 6" tall x 2" wide.
On the firebox to cook chamber opening a half moon of 16" wide x 8" tall will work.


Thank you for the awesome link & information! There's a lot of great information there, and I appreciate it.

Glad to help.
Always remember slow and steady wins the race.



My Hybrid cooker.
Competition trailer #2.

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