Howdy Folks. I've been working for a few days with a buddy of mine on a 275Gal oil tank pig cooker/reverse flow smoker combo. We built the fire box out of an old JobBox that was left at one of our jobsites and other various pieces of scrap metal we have lying around. We're two days into the build and figure probably at least that many more before it's ready for paint/trailer mounting.
Here's day one gettin it cut up and figured out
We built a heat ducting system from the firebox to deliver heat from the FB, through the duct and into an opening in the bottom of the cooker. Duct is 1/4" plate steel on the sides and 1/8" on the bottom. We're going to use some 1/8" steel plate to make a heat shield within the cooker that will have some slope to run any grease/whatnot down and out drain on one side of the smoker.
Here's day two builidng out the duct system and figuring out opening sizes and final mounting.
I ran the Feldon Calculator to figure the opening size in the FB and am going to use that for the same opening in the bottom of the cooker, and half on each side of the heat shield. Planning on 2 exhausts in the middle to encourage heat around both sides of the cook surface
[url=http://feldoncentral.com/bbqcalculator.html?cc=0,0,275,0,0,0,63525.00,21175.00&fb=24,24,48,0,0,27648.00,21175.00,130.6&ch=6,1382.40,48.92&fi=0,0,0,82.94,0&fc=16.79,23.73,221.18]Link to BBQ Pit Calculator[/url]
My intakes are going to large, haven't figure out exactly but plan on providing more than adequate capacity for openings
Whole thing is going to be mounted rear facing on a 6x6 trailer I picked up on the cheap.
Looking for first impressions mostly, we're planning on throwing some fire in the box and hitting the various parts with a heat laser to check the heat distribution before welding it all up final.
Also tossing around the idea of an insert into the cooker for direct heat cooking (some expanded metal on a frame) so I can slip it in if I feel like burning some burgers or the like in it.
More to come