Fire box size

Horizontal smokers with a side firebox and tuning plates.
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TroyTeam93
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Fire box size

Post by TroyTeam93 » September 12th, 2011, 1:38 pm

Hi guys he is my question my current fire box is to small. So I am going to build another one. My cooking chamber is an 80 gal air compressor. The cooking crate is 3 feet by 2 feet. So I was thinking bout building a fire box that is 2'x2'x2' out of 3/16 metal. So I cam get better heat. Also the stack is on the opposite side right in the middle, I was thinking bout making it a reverse flow. Just need some info. The reason is I'm doing this is I am going to start doing BBQ competions.



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Tom_Heath
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Re: Fire box size

Post by Tom_Heath » September 12th, 2011, 10:18 pm

First question is....whats the size of your current firebox?

The numbers I am getting are that a 19" square firebox would be plenty. That is if I did my tank volume correctly.

As far as cooking comps. Is this gonna be your only rig to cook on at the comps?
I find it just a little tough to cook everything needed for a comp on just one single reverse flow.
Most comps have turn ins at 30 minute intervals, and having dead nuts even temps can be a challenge.

We are cooking a comp in two weeks.
I will have my reverse flow and two drums.
Frank is bringing his reverse flow and the little trager.

I know I know......way to many cookers for one comp. But, we gotta show off some of what Smoker Builder can turn out.

In the real world, a reverse and one maybe two drums would be perfect.


So its gonna kinda depend on how you answer before I can make a solid suggestion.

As far as switching you over to a reverse, should be no biggie. A little cutting, a little welding and WAM your rollin smoke again.


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TroyTeam93
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Re: Fire box size

Post by TroyTeam93 » September 12th, 2011, 10:44 pm

thanks tom no it will not be my only rig at the comps, The current fire bax is small like 12 inches by 18 inches.


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Re: Fire box size

Post by k.a.m. » September 13th, 2011, 7:23 pm

TroyTeam93, Tom's dimensions are solid on the new firebox in my opinion. Your size tank lends itself well to tuning plates this will afford you relatively even temps and the option to crank up the heat in a spot if you decide. My current trailer build is a hybrid that will have two stacks one for tuning plate service and the other for R/F service. I just slide the plates together to create an R/F plate then close off the farthest stack and open the one nearest the firebox. Just another idea to ponder. :)



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Re: Fire box size

Post by Tom_Heath » September 13th, 2011, 8:59 pm

The more I think about it the more I like the hybrid design.

The one and only thing that I can think of being a possible downfall would be that when being used as a RF. There is not the option of using the RF plate as a water pan.
But a guy can work around that easy enough.


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Re: Fire box size

Post by k.a.m. » September 14th, 2011, 6:00 am

The boys tried water in my R/F cooker I built them for their comp team during a cook against my advice. As I explained to them the R/F design relies on the radiant heat from the plate for not only even cooking but performance. If you fill the pan with water that is an enormous heat sink that requires more fuel to stay up to temp. It was not long into the cook they opened the drain and let it go.



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Re: Fire box size

Post by Frank_Cox » September 14th, 2011, 7:03 am

Well said KAM! I also advise against the use of water in the pan, but if someone really wants to use something like aaple juice for flavor I tell them to put a small pool and give the trailer some tilt to keep it to one side. Almost like a dripping pan. Best thing tho is to not fill it up.

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TroyTeam93
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Location: southern colorado

Re: Fire box size

Post by TroyTeam93 » September 14th, 2011, 11:38 am

Thanks guys for the info I think I am going to go with a box that is 20 inches. And make it a hybrid lol. We will c what happens.



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Re: Fire box size

Post by rlmax02 » September 15th, 2011, 7:01 am

I used my rf plate as a pan and got great eveness of heat right up until the thing went dry and temps went crazy high showing the amount of energy that is needed to heat the water. I finished the cook without it and still held within 10 degrees. My friend eric and I had a long discussion about whether or not water is needed and I came to the conclusion that if I wanted juice or such in the chamber a small hotel pan would suffice. great topic guys!


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Re: Fire box size

Post by Frank_Cox » September 15th, 2011, 9:58 am

hey, you graduated again rlmax! your rank says "expert" :mrgreen:


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Re: Fire box size

Post by rlmax02 » September 17th, 2011, 2:50 pm

holey shemoley your right Frank..i didnt even see that. Expert is such a loose term tho :lol:


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