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Air Flow Control in a RF Smoker - How much air flow do you need?

post #1 of 9
Thread Starter 

Hi All,

I am new here and I am working on building my first reverse flow smoker.  I have found a good BBQ Calculator (feldons) that is helping with all the measurements but, I have a question.

 

I am considering getting a CyberQ or DigiQ or one of those types of Airflow/Temperature controls for my smoker.  I am wondering if any of you have done this and what size you recommend?  In my research I have found 3 sizes that are 5cfm, 10cfm, and 25cfm.  My smoker is going to be built out of a 120gallon tank with the size of the firebox TBD (feldons recommended approx 20x20x20 inches but may go a little larger). 

 

Thoughts?

 

Thanks!

post #2 of 9
I have a Stoker and the fan that I use for my UDS is 10 cfm (recommended size by Rocks). I would think the 10 would be enough for a 120 gal. I would contact CyberQ and see what they have to say though just to be sure.
post #3 of 9
Thread Starter 

So, I did some research and couldn't find anything even remotely helpful.  I did decide that I wanted to go with the CyberQ Wifi so, I called the guys at Firecraft (who incidentally had the best price for a complete kit) and told them what I was doing and how big I anticipated my firebox to be.  He recommended the 25cfm fan...and said I was right on the border of possibly needing to use 2 fans.  He didn't try to sell me both though, in fact he recommended that I try just one to begin with, that I could add the second one later if I really needed it. 

 

You can find them at www.firecraft.com

post #4 of 9
Why do you feel you need it?
post #5 of 9
Quote:
Originally Posted by hamature View Post

Hi All,
I am new here and I am working on building my first reverse flow smoker.  I have found a good BBQ Calculator (feldons) that is helping with all the measurements but, I have a question.

I am considering getting a CyberQ or DigiQ or one of those types of Airflow/Temperature controls for my smoker.  I am wondering if any of you have done this and what size you recommend?  In my research I have found 3 sizes that are 5cfm, 10cfm, and 25cfm.  My smoker is going to be built out of a 120gallon tank with the size of the firebox TBD (feldons recommended approx 20x20x20 inches but may go a little larger). 

Thoughts?

Thanks!


Feldons has some inherent problems.... The FB/CC opening and area under the RF plate are too small, IMO.... increase those areas by 50%....... THEN....... there will not be an air flow problem.......

Dave
post #6 of 9

Hamature -

Are you wanting to use the CyberQ for a set-it-and-forget-it smoker tender, or are you anticipating problems?

post #7 of 9
Thread Starter 

Thanks for the tip!

post #8 of 9
Thread Starter 
Quote:
Originally Posted by SmokeJumper View Post
 

Hamature -

Are you wanting to use the CyberQ for a set-it-and-forget-it smoker tender, or are you anticipating problems?


Not anticipating problems.  Want to use it for better temperature control so I can smoke overnight.  My current grill, does not have a separate smoker so I use an indirect method and it has almost no air control so i am constantly adding charcoal every 45 minutes and of course all of the accompanying temperature fluctuations that go along with having to constantly open the lid to add charcoal. 

post #9 of 9

Be sure and post some pictures and let everyone know how it turns out

 

Gary S

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