Reverse flow smoker

  • Some of the links on this forum allow SMF, at no cost to you, to earn a small commission when you click through and make a purchase. Let me know if you have any questions about this.

mark4027

Newbie
Original poster
Jan 17, 2021
15
1

  • Member
  • 0
  • 1 post

Posted 1 hour ago
Hi from Uk
I’m at the beginning of a smoker build, and wondered if anyone could give me some help with the sizing and design of the smoker.
The cook chambers going to made from an old LPG tank (370gallons) I’m going to insulate the firer box hopefully 6mm steel all round for that , maybe 10mm on the internal box for heat retention., this is where I need your help , thickness of the door ,as I herd 6mm can warp, also the thickness of the plate in the cook chamber that runs under the cooking racks is thicker better or not . I’m thinking 6mm or is 10mm better.

many thanks
Mark
 

radioguy

Master of the Pit
Jan 12, 2013
1,056
429
Columbus, Ohio
6mm thickness is just about 1/4". That is pretty much the standard in the US. Some go a bit thicker. If you are going to insulate I'd use the 6mm it'll be a lot easier to work with. I used 5/16" ( about 8mm) for my uninsulated firebox because it was readily available at the scrap yard. Thicker steel means longer warm up / cool down times.

Here is a link to a build calculator.


I hope this helps.


RG
 
Last edited:

mark4027

Newbie
Original poster
Thread starter
Jan 17, 2021
15
1
6mm thickness is just about 1/4". That is pretty much the standard in the US. Some go a bit thicker. If you are going to insulate I'd use the 6mm it'll be a lot easier to work with. I used 5/16" ( about 8mm) for my uninsulated firebox because it was readily available at the scrap yard. Thicker steel means longer warm up / cool down times.

Here is a link to a build calculator.


I hope this helps.


RG
What are your thoughts on f/b shape . Square or round .
 

radioguy

Master of the Pit
Jan 12, 2013
1,056
429
Columbus, Ohio
Its really up to you. I chose a square firebox because I felt confident that I could build one and scrap plate was readily available.

RG
 

mark4027

Newbie
Original poster
Thread starter
Jan 17, 2021
15
1
Its really up to you. I chose a square firebox because I felt confident that I could build one and scrap plate was readily available.

RG
Thanks RG , square works better for me , it’s just I herd a round fire box was better. How and why I’m not sure . Also do you think 6mm for the inner box is enough or should I step it up to 10mm.
Mark
 

mark4027

Newbie
Original poster
Thread starter
Jan 17, 2021
15
1
The smokers coming along nicely, hopefully it won’t be to long before it’s finished.
 

Attachments

  • 10AF9B11-834A-4323-B379-4C9613AEA784.jpeg
    10AF9B11-834A-4323-B379-4C9613AEA784.jpeg
    196.6 KB · Views: 16
  • 58EA5FB1-F091-45E0-A53B-CA36552F1320.jpeg
    58EA5FB1-F091-45E0-A53B-CA36552F1320.jpeg
    178.7 KB · Views: 17
  • 0205DA6F-19D9-49C5-AEA7-35F0593BB939.jpeg
    0205DA6F-19D9-49C5-AEA7-35F0593BB939.jpeg
    200.4 KB · Views: 16

GonnaSmoke

Master of the Pit
OTBS Member
★ Lifetime Premier ★
Sep 19, 2018
3,105
4,317
South Carolina
Looking good from here, that thing is going to be a tank :emoji_grinning:. We definitely need A LOT more pictures, bring em on.....
 

mark4027

Newbie
Original poster
Thread starter
Jan 17, 2021
15
1
7D7F815C-A465-444A-A9A6-D61F8D2EEEDE.jpeg
AE95F252-5AB4-4A13-9B03-492FE0BD6714.jpeg
 

Attachments

  • 60D9C4AA-C624-4FDD-90FF-32EC0FE5BF3E.jpeg
    60D9C4AA-C624-4FDD-90FF-32EC0FE5BF3E.jpeg
    182.9 KB · Views: 12

mark4027

Newbie
Original poster
Thread starter
Jan 17, 2021
15
1
Another bit done, hopefully the opening between the f/b & c/c is big enough 20” wide x 8” high
 

mark4027

Newbie
Original poster
Thread starter
Jan 17, 2021
15
1
Cooking racks and counter weight now done
 

Attachments

  • BA0000B3-5648-4BB0-B978-96EBC7108F1C.jpeg
    BA0000B3-5648-4BB0-B978-96EBC7108F1C.jpeg
    181.5 KB · Views: 11
  • FFF903FD-8320-4F3A-A4DB-D9A4DEAE3856.jpeg
    FFF903FD-8320-4F3A-A4DB-D9A4DEAE3856.jpeg
    192 KB · Views: 9

Hot Threads