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Jim.tucker
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Help

Post by Jim.tucker » April 29th, 2019, 8:30 am

I have a reverse flow started. The cook chamber is 36"l x 24"w x 25"t. The Firebox i started without knowing about the Pit Calc. is 24"l x 19"w x 24.5"t. That is with a removable ash pan the the fire basket sits about 4" above the ash pan. According to the Pit Calc my firebox is 155%. is this going to give me problems maintaining a constant fire? I am at a loss because right now there is not way to make it any smaller without starting over.
Thank you for your time.
Jim
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Re: Help

Post by BitBucket » April 29th, 2019, 11:51 am

I confess i'm not sure about if 155% is too much, other sharp folks on these forums will be able to give you guidance on that. If it's too much, a few thoughts.

It's hard to tell from the pictures--is that firebox single wall construction? You might be able to add a 2nd wall to the interior to bring the interior volume down? Insulate that with rock wool and you'll increase efficiency and bring the numbers a bit closer together. Much easier to resize the basket and ash tray than the exterior dimensions, but adding a 2nd wall at this phase might be impractical. If that doesn't sound good you could make a wedge shaped ceiling insert, lowest at the door and highest at the back mated with the throat at the top to reduce volume. I humbly defer to folks who do this more often if they say these are bad ideas, believe them vs. me.


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My motto on building smokers: “It does not matter how slowly you go so long as you do not stop” ~ Confucius

Jim.tucker
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Re: Help

Post by Jim.tucker » April 29th, 2019, 12:06 pm

Thank you sir, yes it is single wall construction so those 2 ideas are a great place to start if in fact it's too large.



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Big T
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Re: Help

Post by Big T » April 29th, 2019, 7:50 pm

155% is definitely too big and will cause you all kinds of headaches when you start trying to maintain temps. Both of the methods that Bitbucket mentioned will work fine. You could also raise the slide rails for the Fb and ash pan and put a simple false floor in the Fb to cut down on the volume if you don't want to insulate. I could be wrong but it looks like the intakes are high enough that you wouldn't need to move them. Make sure that you recalculate the size of your throat for the correct size FB.


Measure Twice.....Cut Three Times.

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Re: Help

Post by Chromeski » April 29th, 2019, 9:09 pm

A false wall/ floor on one side will be easiest way to go.
Another thought us that this smoker will last a lifetime the extra time spent now may be worth it to you in the ed ed



Jim.tucker
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Re: Help

Post by Jim.tucker » April 30th, 2019, 2:46 am

Chromeski wrote:
April 29th, 2019, 9:09 pm
A false wall/ floor on one side will be easiest way to go.
Another thought us that this smoker will last a lifetime the extra time spent now may be worth it to you in the ed ed
Thank you sir. I sure do not want to put all this time in and have to fight it later on.



Jim.tucker
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Re: Help

Post by Jim.tucker » April 30th, 2019, 2:50 am

Big T wrote:
April 29th, 2019, 7:50 pm
155% is definitely too big and will cause you all kinds of headaches when you start trying to maintain temps. Both of the methods that Bitbucket mentioned will work fine. You could also raise the slide rails for the Fb and ash pan and put a simple false floor in the Fb to cut down on the volume if you don't want to insulate. I could be wrong but it looks like the intakes are high enough that you wouldn't need to move them. Make sure that you recalculate the size of your throat for the correct size FB.
Thank you Big T for your input. It sure would be better to repair it now the. Have to fight it in the future. :beer:



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Re: Help

Post by Jim.tucker » May 1st, 2019, 12:13 pm

From 155% to 113%. Thank you for your great ideas.
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Re: Help

Post by Jim.tucker » May 1st, 2019, 12:14 pm

Jim.tucker wrote:
May 1st, 2019, 12:13 pm
From 155% to 113%. Thank you for your great ideas.
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Re: Help

Post by BitBucket » May 2nd, 2019, 11:27 am

Nicely done Jim!


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My motto on building smokers: “It does not matter how slowly you go so long as you do not stop” ~ Confucius

Jim.tucker
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Re: Help

Post by Jim.tucker » May 2nd, 2019, 7:18 pm

BitBucket wrote:
May 2nd, 2019, 11:27 am
Nicely done Jim!
Thank you sir.



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Re: Help

Post by Big T » May 2nd, 2019, 8:17 pm

:LG:


Measure Twice.....Cut Three Times.

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Re: Help

Post by Chromeski » May 2nd, 2019, 8:27 pm

It will be a better smoker now



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Re: Help

Post by Dirtytires » May 3rd, 2019, 1:36 pm

Nice fix. You will definately be happier with using it.



Jim.tucker
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Re: Help

Post by Jim.tucker » May 4th, 2019, 10:13 am

Big T wrote:
May 2nd, 2019, 8:17 pm
:LG:
Thank you Big T. Also thank you for all your advice.



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