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New Smoker Build picture update 6/30/10 finished smoker..
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newtoque
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PostPosted: Wed Nov 25 09 2:45 am    Post subject: New Smoker Build picture update 6/30/10 finished smoker.. Reply with quote

Guys, I am fairly new to smoking but real new to the smoker building. I am going to make a smoker out of an 80" long 29" diameter tank. I know most people say that the SBF should be 1/3 the size of the cooking chamber, I was thinking more along the lines of 1/4 the size, any ideas on this?

Also I am trying to decide between a reverse flow unit and one with tuning plates. What are your opinions?


Last edited by newtoque on Thu Jul 01 10 10:10 am; edited 3 times in total
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Jarhead
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PostPosted: Wed Nov 25 09 6:49 am    Post subject: Reply with quote

Check this out, it is the builder's bible.

http://www.thesmokering.com/forum/viewtopic.php?t=20871
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Tom C
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PostPosted: Wed Nov 25 09 6:52 am    Post subject: Reply with quote

Hello newtoque,

I think you would be pushing the limit going that small on the firebox. I would be reluctant to go that small.

On my smoker I ended up going the other direction and built one almost half the size of the cooking section. This was based on what I saw on commercially built systems.

My smoker has tuning plates and works well. Many have built reverse flow smokers that work great as well. It's a matter of choice on this point.

Good luck with your build and post pictures if you get the chance.
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charleso
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PostPosted: Wed Nov 25 09 9:07 am    Post subject: Reply with quote

You will be pushing it with too small a firebox. I would hand as close to the 1/3 rule as possible. I have a 22"x60" propane tank built into a reverse flow:

I absolutly love it. I have just acquired a 24" diameter tank that is 80". I am currently designing a firebox and vertical warming oven/smoker to build into it, similar to a Lang deluxe model.
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k.a.m.
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PostPosted: Wed Nov 25 09 11:03 am    Post subject: Reply with quote

Welcome to the ring newtoque, looking forward to seeing some pics of your cooks. Smile And following your cooker build. Very Happy
I am with Tom on your fire box size I think when you decrease the size of your fire box you are basically making the cooker work harder and it sometimes becomes a log hog because you are starving it of much needed oxygen to maintain a proper draft. About as fast as fresh air comes into the firebox the cooking chamber is taking it to maintain its draft. These are just my thoughts.
As far as tuning plates or reverse flow, I like them both. I have one with tuning plates and I am building a reverse flow now with about your size tank for my son-in-law's brother.
Here is the link.
http://thesmokering.com/forum/viewtopic.php?t=32283
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newtoque
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PostPosted: Wed Nov 25 09 11:59 pm    Post subject: Reply with quote

Would going to 1/3 or 1/2 the size of the smoke chamber not leave a lot of dead space to heat causing you to have to burn more fuel.
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Tom C
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PostPosted: Thu Nov 26 09 1:09 am    Post subject: Reply with quote

To me I think it comes down to airflow through the smoker. A firebox that is too small is going to pass the air through too quickly to the smoking chamber. This will cause problems maintaining or even reaching the temps you want. Because the air is moving too quick through the firebox it fans the fire making it burn faster. With a larger firebox the fire has a chance to heat the air passing through better making it more efficient.

The slower air movement makes temp control easier. Can you take it to the other extreme? Yes I would thank so. My firebox is a little under 1/2 the size of the cooking chamber. Sometimes on a warm day the fire that is needed to heat my smoker to the right temp. looks mighty small in there. However the larger firebox allows me to build a good size fire if I want to get the smoker hot enough to cook a pizza at 450-500* That makes it very versatile! Very Happy

I'm not an expert by any means, but that's my thoughts on how it works.
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newtoque
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PostPosted: Thu Nov 26 09 2:49 am    Post subject: Reply with quote

Another thing I am thinking of doing is a propane log ignition system using an old grill burner. What are your thoughts on this?
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Tom C
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PostPosted: Thu Nov 26 09 11:14 am    Post subject: Reply with quote

I've never used one but have thought of adding one to my smoker.
A burner from a gas grill might work but others here would be more knowledgeable on that than me.
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newtoque
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PostPosted: Mon Nov 30 09 10:07 am    Post subject: Reply with quote

I think it will work pretty good and and if your temps drop, maybe it will work to brings temps back up as well
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newtoque
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PostPosted: Mon Nov 30 09 10:25 am    Post subject: Reply with quote

One additional thing i am thinking about doing is making charcoal baskets to be used in the main so it can be used as a grill if needed for certain situations. Any thoughts on this?
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Tom C
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PostPosted: Mon Nov 30 09 11:58 am    Post subject: Reply with quote

I made one for mine but hardly use it anymore.

It was hard to control temps with it and I prefer using wood in my smoker over charcoal. It might work great though if you are planning on having a grill in your firebox.
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newtoque
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PostPosted: Mon Nov 30 09 11:11 pm    Post subject: Reply with quote

I am not talking about using Charcoal Basket in the firebox, I prefer to smoke with wood as well. I am talking about making a charcoal basket for the main chamber so that if I need to grill for large numbers, I can grill with it as well.
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newtoque
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PostPosted: Tue Dec 01 09 8:55 am    Post subject: Reply with quote

Here is a pic of the tank. Not started any work yet

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k.a.m.
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PostPosted: Tue Dec 01 09 10:56 am    Post subject: Reply with quote

newtoque, that tank is going to make a fine cooker. Very Happy
On your charcoal tray idea, I like the idea DP cookers have those and they are removable from the side I believe.
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mtrammel
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PostPosted: Tue Dec 01 09 11:05 am    Post subject: Reply with quote

WOW. Fun will be had at your house. Like that tank...
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newtoque
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PostPosted: Tue Jun 29 10 4:08 am    Post subject: Picture Update 6/28/10 Reply with quote

Well I finally decided to start on my smoker, rather got the funds together. Here are the pictures of the progress so far. I missed several steps with pics as I didn't have my camera with me. All work was done between Wednesday and Saturday. WOuld have more done but the plasma cutter didn't come until Friday.

Let me know what you think

Tank sitting on the trailer we made



End of tank cut for firebox and tacked into place


Door cut in fire box and opening into cooking chamber


Cook Chaber door cut and mounted

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newtoque
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PostPosted: Tue Jun 29 10 9:56 am    Post subject: Reply with quote

Let me know what you guys think
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ckone
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PostPosted: Tue Jun 29 10 10:39 am    Post subject: Reply with quote

I like what you have so far. I love the simple trailer. The charcoal grates you talked about are a good addition if you are going the tuning plate route. I am making some for my pit as soon as I have the time. (material is already here, but time is another story)
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k.a.m.
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PostPosted: Tue Jun 29 10 7:24 pm    Post subject: Reply with quote

newtoque, your cooker build is looking fantastic. Very Happy You are doing some nice work right there. I like the trailer design you came up with, will you run a stiffener under the tongue? Keep up the nice work I will be watching for more updates. Smile
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