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I have a question on my reverse flow looking for help

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smokingalf

smokingalf

Fire Starter
Original poster
May 9, 2015
31
11
Albuquerque New Mexico
This is my new braunfels smoker I started out with . When I first found this site I seen lots of things I could do to it for a better smoke.
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I have put gaskets on the fire box and cooking area,all so seen the clamps for both. FB And Cooking area .for a good seal .
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but I didn't stop there I added 1/4" tuning plates to help with the heat along with a water pan
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plus went ahead and added a pipe from smoke stack to one inch above the cooking grade. I blocked about 1/2 of the opening from the FB to cooking area too
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we build a basket for the charcoal or wood
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didnt stop there went to harbor freight Got new wheels for it too . I still wasn't happy still so I took it from a direct flow to a reverse flow
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well here is my question some days I can get really good temperature and evenly too 210 ,205 so that's good but shouldn't it be able to get hotter then that? I burn
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yes that's Hickory Lump and kingsford gets nice and hot
GALLERY]
now the other question is flow of the fire should be going in the smoker right ? Do I need a bigger smoke stack ?am I doing something wrong? Thank you for your help .
Some q pics
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You should be getting a lot higher temps than the lower 200's.
And no the flame shouldn't be shooting out your firebox door. Seeing that I would say you are not getting a good draft. How do you have your baffle plates set up?
Is your basket up off your firebox floor?
 
Last edited:
Sounds like your basket is good. Not sure how much space you should have at the end baffle to the end of your smoker. Somebody will know...
 
From what I can see, the tuning plates need a gap between them to allow for heat/smoke etc. to get to the food grate and exhaust stack... Ususally the largest gap, about 1", is near the stack.... lesser gaps toward the FB..... Also, the food grate can be hindering the flow into the exhaust... Can you raise the stack to about 3-4" above the grate....... It's amazing what can hinder the air flow in a gravity flow system..

Try those adjustments... See what the results are.... then we can talk about your firebox
 
Ok I did run my numbers for the opening . Recommend size is 29.0 I have 28.50 sq in
So I am very close by 1/2 sq in . The FB is 3519 cu in recommended is2410 so for FB bigger is better I believe? My smoke stack is round with 123.1 vol
FB opening high I have 3 3/4" holes on top
Recommended 1.45
Low I have 4.5 x 2.25. Recommended is 7.24
So I guess I am there ? But why is the fire coming out the way it is and my temperature aren't as high?
 
Poor air flow.... Blocked air flow.... Too big of a fire.... Not enough room for the heat to travel through the smoker.... Opening between the FB and CC too low in the FB.... That opening should be at the top of the FB so the heat/smoke flow follows a natural path.....

Typical example of "air flow" from the FB to the CC.... Heat likes to rise....

5f0d0167_firebox-5.gif

5f0d0167_firebox-5.gif


Where you have a Round to Round coupling, the opening is best at the top of the FB for a smooth, uninterrupted air flow.....

FB-CC relationship round to round.jpg

FB-CC relationship round to round.jpg

 
Ahhh Haaaaa... thinking Dave just nailed it with the opening being to low... you may have to remove the FB and lower it... close up some of the top part of the hole in the CC and some of the bottom part of the hole in the FB to achieve the proper size opening with it being at the top of the FB into the lowest part of the CC ...
 
Ok this what I am going to do first remove the pipe I added as I am pointing to in the picture
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I just got off work so now I can take more pictures. The gap at the other end
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And a picture of my plates.
So it looks like I need to move the firebox so if I move it down from where I am pointing in the picture to where I am pointing to on the bottom one
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