1st Build Attempt

Horizontal smokers with a side firebox and tuning plates.
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Grems4Ever
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1st Build Attempt

Post by Grems4Ever » January 22nd, 2018, 8:54 pm

Evening all.

I'm just starting on turning my old 60 gallon compressor tank into an offset smoker. I did quite a bit of research and used an online calculator to crunch the numbers before digging in. Here's what I'm starting with...

60 gallon tank for cooking chamber...
Image

22 gallon tank for firebox...
Image

Rough sketch of the general plan and numbers. I'm no artist so no laughing...
Image

Stand for the cooking chamber has been made...
Image

So far everything is moving along relatively smooth. There's a lot of fine details that I'm still working on but there's one aspect that I'm completely bum-fuzzled about. I'm trying to figure out how one goes about cutting and mounting the firebox to the cooking chamber. Of course, I've got to be different and use a round firebox when most beginners use a box. If anyone can help me make sense out of how to do this, I'd deeply appreciate it.

Thanks in advance!
David



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1st Build Attempt

Post by Rodcrafter » January 22nd, 2018, 8:59 pm

Welcome to the crew!


Someone will stop by soon and help you with the round to round throat opening calculator.


Making memories!


Current Smokers: Backyard RF Offset and Hybrid RF Offset trailer rig with Cowboy cooker and fish fryer, always room for more........

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Re: 1st Build Attempt

Post by Grems4Ever » January 22nd, 2018, 9:45 pm

I'm having a blast with it. I've never been one to let a trivial matter like not having done it before stop me. :D



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Re: 1st Build Attempt

Post by Dirtytires » January 22nd, 2018, 11:04 pm

And it shouldn't! Have fun.



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Re: 1st Build Attempt

Post by smokincookie » January 23rd, 2018, 5:33 pm

Welcome aboard and you have come to the right place, these guys are knowledgeable and just plain great the ones that can help you will be right along have a great new experience.


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Re: 1st Build Attempt

Post by temurf » January 23rd, 2018, 6:59 pm

Welcome David.


Yer gonna like what we've been smokin'.

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Re: 1st Build Attempt

Post by Cole » January 23rd, 2018, 9:11 pm

Like the project! Keep the pictures flowing.



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Re: 1st Build Attempt

Post by The Czar » January 24th, 2018, 3:32 am

Welcome and so far so good!


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Re: 1st Build Attempt

Post by Grems4Ever » January 24th, 2018, 9:32 pm

Cole wrote:Like the project! Keep the pictures flowing.
I'll do my best. Finding time to work on it has been a bit of a challenge, but I'm determined to do something to it every weekend even if it's just little things.



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Re: 1st Build Attempt

Post by Dirtytires » January 25th, 2018, 11:11 pm

Take your time...no rush and no deadline will make a better product.



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Re: 1st Build Attempt

Post by Grems4Ever » January 26th, 2018, 12:49 pm

So true. Some things just take time and between work & family obligations there’s just not much to go around.

I've been playing with the throat calculator and think I might understand how to do it. Here's the numbers working with a 1" grease dam...

Top Width: 13.875 (Terribly close to my 14" diameter tank :o )

Bottom Width: 8.718"

Height of Cut: 3.309"

Calculated Volume: 37.634 cu. in.

If I understand the diagram right, I should be able to use a laser level and a square to lay out the dimensions on the end of the tank and then cut on the lines to open up the throat. Then its a matter of carefully cutting the firebox tank to match the contour of the cooking chamber.

Does this sound about right? I've only got the one cooking chamber and don't want to screw it up.



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Re: 1st Build Attempt

Post by Pete Mazz » January 27th, 2018, 5:32 am

Somethings not right . 1 + 3.3 = 4.3 from bottom which is nowhere near mid tank


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Re: 1st Build Attempt

Post by Grems4Ever » January 27th, 2018, 7:25 am

I'll double check the numbers...



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Re: 1st Build Attempt

Post by Grems4Ever » January 27th, 2018, 9:45 am

Here's what I got when I punched the numbers through again. I came up with the same results so I'm going to post them and let everyone look them over.

Image

Image



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Re: 1st Build Attempt

Post by Grems4Ever » January 27th, 2018, 6:45 pm

My stash of odds and ends finally paid off! Now I can make the smoker mobile...

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Re: 1st Build Attempt

Post by Pete Mazz » January 28th, 2018, 6:04 am

Oh, I was thinking the CC was 14". If you want to make a narrower throat just enter a smaller width for the FB.


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Re: 1st Build Attempt

Post by Grems4Ever » January 28th, 2018, 10:50 am

No problem. Better safe than sorry any day. I'll go back in and do that with the width of the FB just to give me a little more breathing room.

I'm giving it wheels today and maybe, just maybe, starting on the CC door.



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Re: 1st Build Attempt

Post by Grems4Ever » January 28th, 2018, 3:46 pm

Here's what I got done today...

Image

Image

Image

Image



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Re: 1st Build Attempt

Post by Big T » January 28th, 2018, 9:44 pm

:LG:


Measure Twice.....Cut Three Times.

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Re: 1st Build Attempt

Post by Grems4Ever » January 29th, 2018, 9:27 pm

Made a little more progress after dinner last night.

Image

Image

I have the top of the CC door cut out and laid out the hinges. I have just a few more details on the base that I want to take care of before permanently attaching the CC to the base. Since I'm still working out how I'm going to slow the loss of smoke through the cut line between the hinges, I probably will leave the CC free so I can rotate the tank around to facilitate better welding angles should I need to weld something in from the inside. Once that's taken care of, I'll true things up and burn it into position.



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Re: 1st Build Attempt

Post by Smurf » January 29th, 2018, 10:09 pm

:LG: Nice you got a plan



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Re: 1st Build Attempt

Post by Big T » January 29th, 2018, 10:24 pm

You can strap the edge of the door with some 1/8''x1.5'' flat bar and use 3/8'' fiberglass rope gasket to seal the gap. You'll need to install the gasket before you weld the hinges on so the door will seat correctly.
:LG:


Measure Twice.....Cut Three Times.

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Re: 1st Build Attempt

Post by Grems4Ever » January 31st, 2018, 8:50 pm

Big T wrote:You can strap the edge of the door with some 1/8''x1.5'' flat bar and use 3/8'' fiberglass rope gasket to seal the gap. You'll need to install the gasket before you weld the hinges on so the door will seat correctly.
:LG:
You wouldn't happen to have a picture of that would you?

I'm not the best at visualizing things sometimes...



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Re: 1st Build Attempt

Post by Dirtytires » January 31st, 2018, 11:01 pm

The point here is that, in order for the door to lay flat, you need to take into account the thickness of your gasket. If you weld your door on flat and then try to add the gasket, your door will never close (properly) due to the thickness of the gasket under the hinge side of tHe door.

Their are many threads on preferred methods...do a quick search for better explaination.

I used 0.25 flat gasket as my door didn't warp much when I cut it. I put a spacer (washer, steel scrap, etc) that was 1/2 that thickness (0.125) on th back of the door and then held it down tight with some ratchet straps. Then weld on the hinges. The gap you left with the spacer will allow the gasket to crush some and then fill the gap perfectly. And....the door will close properly.



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Re: 1st Build Attempt

Post by Big T » January 31st, 2018, 11:32 pm

1384713456388.jpg[/attachment ][attachment=0]2013-12-02_16-57-27_105.jpg
I think I used 2'' flat bar on this one but 1.5'' will work just as well. You'll need to do these steps first and then put the door in place, gently snug it down with a couple of ratchet straps and weld the hinges on. If you weld the hinges before installing the gasket the door will bind up and not seal up.
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Measure Twice.....Cut Three Times.

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