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Old 08-25-2013, 07:36 PM   #1
Found some matches.
Join Date: 08-23-13
Location: Elizabethtown, Ky
Default Fire Box Steel Thickness

I am in the process of building a reverse flow smoker out of a 250 gallon propane tank. I was needing some suggestions for the thickness of the fire box.
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Old 08-25-2013, 07:39 PM   #2
Babbling Farker

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Join Date: 08-01-12
Location: Fairfield, Florida

1/4" ok, 1/2" better! You can squeek by with 1/8" (11 gage) if you use firebrick to line the interior (at least the bottom) but I don't recommend it.
I'm Dave
Got a bunch of cooking toys and a custom metal fabrication shop where I spend my time building all sorts of smokers & outdoor cooking gear.
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Old 08-25-2013, 07:48 PM   #3
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Join Date: 09-17-05
Location: Mooresville, NC

1/2" total - either solid 1/2" or (2) 1/4" w/ insulation

1/4" minimum if budget or materials are limited. That will still be good..
XL BGE (#2) & Performer Platinum

Former owner: Jambo Backyard, Klose BYC, Lonestar Vertical offset w/ Insulated Firebox, Medium Spicewine, Pitts & Spitts, XL BGE (#1) & (2) Medium BGE's, 22" WSM & (2) 18" WSM's, 18" & 22" Weber Kettles
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Old 08-25-2013, 08:13 PM   #4
somebody shut me the fark up.

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Join Date: 07-17-13
Location: Burleson Tx

1/4 - insulation - 1/4 -
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Old 08-25-2013, 09:08 PM   #5
Take a breath!
Join Date: 09-09-12
Location: Crystal Lake IL

What do you use for insulation commonly?
22.5 OTS, 22.5 OTG, 18 WSM, 18 Jumbo Joe
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Old 08-25-2013, 09:31 PM   #6
Full Fledged Farker
Join Date: 03-19-12
Location: waxhaw,nc

I made a RF smoker out of a 250 gallon propane tank . I used 1/4" steel for the firebox and RF plate. I did not insulate the firebox. It works great and have no issues .
2- 22.5 WSM , 150 Gallon Offset , 250 Gallon Reverse Flow
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Old 08-25-2013, 10:47 PM   #7
Full Fledged Farker
Join Date: 08-21-11
Location: Sacramento, CA

I went qtr inch and sure wish I had done insulated or half inch.
Don't get me wrong, the qtr inch works but if you have the option I'd go insulated.
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Old 08-25-2013, 11:30 PM   #8
retired trucker
is One Chatty Farker
Join Date: 09-28-11
Location: Dallas, Georgia

I think the old adage of "less is more" does not apply in this case. I would go 1/2 inch or insulated 1/4.

Webber 22 1/2 OTG Gold, UDS, rusted out chimney, Red Lavatools Thermowand, Maverick ET 732, 1950 model wife. Walking cane to help me get around.
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Old 08-26-2013, 09:53 AM   #9
luke duke
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Join Date: 01-16-10
Location: Dallas, TX

Insulated w/ mineral wool is orders of magnitude better than 1/2" steel in terms of heat transfer (or lack thereof).
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Old 08-26-2013, 01:33 PM   #10
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Join Date: 10-11-12
Location: Jonesboro. AR

Did we mention we like Pics?! And Ditto what they said!

250 Gallon Offset Build (2012)


600 Gallon Offset Build (2016)
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