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Ok after info from a few of you and using new calculator, I have my info to start cutting tank...(not cutting yet)..after I finish up te FB. The firebox did start out as a 90 gal diesel tank from a construction companies generator. I will have to add the top air inlets after reading more info. I only had the bottom ones in the side and back 7 total.
And build the grate and platform for it.. and a shallow ash bin.
Good weekend again. got door cut out,hinges welded on before cut all the way thru. Angle iron added to top to reenforce top and hinges. put out side to save cc space. supports made to keep door from bowing out on the right side. suppports need to be made for each side using barrel left and right.....I did not do this the first time . the barrels will not be the same on each side!! I made both on left side with out thinking differently. left was right on--- right was off- bottom right corner stuck out. Once I redid the right one on the barrels right side -this fixed it. I had to tack a few tabs on the inside of lid opening to hold the door even with the barrel when closed. Once the banding on the door is inplace then the tabs can be removed. The fill cap, fuel gauge,and other openings weree all shaved off, a few were filed in. Have 2 big ones left to do. Should be able to use the 1.5'' straping from the barrel stand to band the door. The orange angle was from the sme stand that came with barrel. recycling baby
Well got the RF plate in (used 8 pcs) 3/16'' sloped to the center and bent in middle to have sloped on all 4 sides. Got the o.s. bottom grate supports in -4.5'' above RF plate. Drilled center hole in RF plate and bottom of CC to add drain pipe later. Used heavy angle iron just above CC 1/2 moon opening to stiffen CC end wall and be able to weld to FB with out burning thru.
Looking at your build, looks like the FB/CC opening is a little small.... FWIW, these are the numbers I came up with for the smoker to work properly...
I have used mostly all steel from the stands that the fuel barrels sat on for my angle iron. and the FB started out as a fuel tank for a diesel engine at a construction site.
You can leave the opening as it is.... It looked small.... Too big is just fine...... too small causes the FB to overheat and burn too much fuel..... You will be happy with it oversized.....
Sorry about the confusion.... I looked for your calculations to confirm my suspicions, Before I made my comment.... couldn't find any numbers......
Well not a very good Friday for me... Strap broke when lining up cc to fire box. Could of been worse,, have 2 broken bones in hand, see surgeon Monday!!¡ build on hold.. Later
Well, camping this weekend, so no work on smoker to be done. BUT I was accused by a coworker of making (chicken fingers ) on the smoker before it was done! her is a pic of what he was talking about. Pinky and pointer fingers - NOT chicken fingers!! LOL