Any advice is welcome

Horizontal smokers with a side firebox and tuning plates.
cjohnson28
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Any advice is welcome

Postby cjohnson28 » April 16th, 2018, 7:00 pm

24x60 CC, with a massive throat. Fire box is 24x30x25. Intentions are to build a sleeve insulate and slide inside of that beast. How to I figure out how big the throat needs to be? Will that change if I decide to make it reverse flow vs the way it is now?
Thanks Chris

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Rodcrafter
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Re: Any advice is welcome

Postby Rodcrafter » April 16th, 2018, 7:22 pm

Looking good


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Re: Any advice is welcome

Postby Big T » April 16th, 2018, 7:26 pm

There's a pit calculator at the top of the forums. You start by putting the dimensions of the CC and then play with the size of the FB until you get it in the 105%-115% range and it will give you your throat size. The throat is the same for any offset or RF.


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Dirtytires
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Re: Any advice is welcome

Postby Dirtytires » April 16th, 2018, 11:38 pm

If you are going to insulate the firebox, I don’t see a need to make it removable. Just weld it.



cjohnson28
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Re: Any advice is welcome

Postby cjohnson28 » April 17th, 2018, 6:53 am

Big T wrote:There's a pit calculator at the top of the forums. You start by putting the dimensions of the CC and then play with the size of the FB until you get it in the 105%-115% range and it will give you your throat size. The throat is the same for any offset or RF.


Thanks Big T, the fire box is currently 181% to big.
So the measurements calc gave will per FB/CC that I typed in? Correct?
So fix the FB to get the correct throat size?


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cjohnson28
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Re: Any advice is welcome

Postby cjohnson28 » April 17th, 2018, 6:55 am

Dirtytires wrote:If you are going to insulate the firebox, I don’t see a need to make it removable. Just weld it.

It won’t be, I was just saying I was going to leave the old and fab a new inside. Sorry new to building and very lost at correct wording.


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cjohnson28
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Re: Any advice is welcome

Postby cjohnson28 » April 17th, 2018, 6:57 am

I see everyone moving the exhaust below the grate level now. The length the calc gives is that above the CC?


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cjohnson28
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Re: Any advice is welcome

Postby cjohnson28 » April 17th, 2018, 6:58 am

Rodcrafter wrote:Looking good


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Lots of work to make it cook efficiently and correctly but I’m enjoying the learning process.


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Re: Any advice is welcome

Postby Rodcrafter » April 17th, 2018, 9:05 am

I t looks like a good start. The stack dimensions are from the top of the CC. The insert of the new FB will help everything. So plug in the inside dimensions of your FB insert and CC the Calculator will tell you the rest. If the numbers are still too big just plug in smaller dimensions.


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Current Smokers: Backyard RF Offset and Hybrid RF Offset trailer rig with Cowboy cooker and fish fryer, always room for more........

cjohnson28
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Re: Any advice is welcome

Postby cjohnson28 » April 17th, 2018, 5:17 pm

Thank you Rodcrafter



cjohnson28
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Re: Any advice is welcome

Postby cjohnson28 » April 17th, 2018, 7:44 pm

FB question, does the top of the fire box need to be flush with theImage top of the throat? There’s currently 2 5/8” from the top of the throat to the top of the FB. Does that need to be flush


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Re: Any advice is welcome

Postby Big T » April 17th, 2018, 9:24 pm

It is best for them to be flush. It cuts down on turbulence from the FB to the CC.


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cjohnson28
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Re: Any advice is welcome

Postby cjohnson28 » April 18th, 2018, 6:50 am

Big T wrote:It is best for them to be flush. It cuts down on turbulence from the FB to the CC.


Thank you sir


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Re: Any advice is welcome

Postby Rodcrafter » April 18th, 2018, 5:25 pm

Yep


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Re: Any advice is welcome

Postby Dirtytires » April 19th, 2018, 9:55 pm

cjohnson28 wrote:I see everyone moving the exhaust below the grate level now. The length the calc gives is that above the CC?


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Keep the exhaust at the top. I’ve had both ways and much better at top. Low mounted exhaust just let stale smoke build up and drop all the soot on my meat.



cjohnson28
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Posts: 20
Joined: March 24th, 2018, 9:08 pm

Re: Any advice is welcome

Postby cjohnson28 » April 19th, 2018, 9:58 pm

Dirtytires wrote:
cjohnson28 wrote:I see everyone moving the exhaust below the grate level now. The length the calc gives is that above the CC?


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Keep the exhaust at the top. I’ve had both ways and much better at top. Low mounted exhaust just let stale smoke build up and drop all the soot on my meat.

Thank you



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