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BBQ Build - Attempt to build a reverse flow offset smoker


Taistorm

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Missed the original deadline as the bros birthday was on Monday but it doubles up as an xmas present as well so he can wait. 

Did some more work yesterday and smashed out the inner firebox/coal cradle thingy.

Cut some steel, mostly being 5mm angle and plate.

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Put it together with some of the expanded mesh.

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Then did a top frame thing with some left over 3mm angle.

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It actually looks pretty good once it's sitting in place.

 

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There's a decent amount of weight to this so it should help with heat retention and it's easily removable to help with cleaning out the old ashes. All that's left on the firebox now is the damper vent, a grill and the handle.

 

Cheers

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Cut some holes towards the bottom of the cooking chamber and fire box, drilled some holes and made some nuts captive.

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Cut some tabs.

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And made some fully hectic wingnuts.

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These really are just cleaning/drain ports. I was going to utilise the bungs already in the tanks but they are quite small and also would require a lot of cutting and Fucking around to make them suitable so decided on an easier alternative. Should be easy for clearing ash and grease etc. Can kind of see where they sit below.

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Alright, got a half day in on this today with the help of the mrs and I'm Fucking stoked with where I'm at. Can finally see the finish line. 

Started off with sorting the chimney and flue. Cut a length and a bend, welded in some locators for the adjuster and made a top hat that's fixed to a chipping hammer as the adjuster.

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I positioned the handle offset so the flue can be fully opened for max heat. Pretty tall stack, mounted it about 3 inches above the main grilling plate and high enough so people don't have to try and dodge smoke all day.

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Added some more to the damper. Fitted a vertical bit of plate and some angle to act as a stopper. I'll dress it up a bit more so it looks a bit tidier before it's painted.

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Then made some handle mounts for the doors. Pretty straight forward.

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And fitted with the pine mocked up.

 

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And some 50x5 angle for stoppers for the charcoal basket. Also I welded in some angle at the front to increase rigidity and pull it a bit straighter. Have since cleaned up the welds so it's nice and flat.

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Shit this is looking good, is there a baffle in the bottom that forces the flow to do a loop in the main chamber? Ie is that the reverse flow bit? 

Re the inlet vent, if you have trouble with minimum temps you could put a felt seal between door and firebox, big green egg has replacement seals that I was looking at to try and get my kamado more air tight 

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Cheers bro, stoked as with it haha.

Yeah bro, put some removable baffles in for the reverse flow setup. Will wait and see how effective it is, if need be can change out for a different sized opening and run thicker steel plates for different temps.

 

And yeah that's a great idea. I actually picked up some fibreglass heat seal strips from bbq and more the other day to help with the doors.

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Been going hard at work leading up to xmas but also managed to squeeze in more time on this.

 Made a stopper for the Fire box door.

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Sits pretty nicely now.

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Also drilled some holes and mocked up the gauges. Wanted to put them higher but there would be clearance issues with the top rack.

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I also welded in a little rack thing for the firebox grill to sit on and cleaned up the damper but forgot to take a pic.

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Looking good.. 

May I suggest that you get a fire going in it as soon as possible. You are going to need to set the paint well, before its first use.. the smell from the high heat black is pretty horrendous. It will burn off tho, and then you will be all good, till next year, when you will need to paint it again.

Also check on the can, but with the pot belly black that I used from bunnings, it said that you have to recoat within 16 hours, otherwise leave for 7 days then recoat. I didn't follow the instruction when I painted my spit, and it all bubbled off in the first burn.

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