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Casey3115
09-09-2019, 09:29 PM
So last year I put together a cinder block pit at a buddy's house so we could cook a whole hog. I don't think I posted pics of that build or cook but it was pretty standard. Large rectangle with openings on both ends to shovel coals all day fom a separate fire pit. Probably why I didn't take a lot of photos. It was a lot of work.

A few weeks ago I decided to do something with all the cinder blocks that have been sitting around. I decided to change the dimensions a bit a try to make an offset smoker.

I have experimented a bunch and changed things around, and around while doing test burns. This version seems to be working pretty good now.

I ended up digging the firebox down one course which has worked out great. There is a sideways block under the grate from fire box to cook chamber, and the chimney starts below the grate as well on the other side. When the firebox was up higher the heat wouldn't flow well over the food because the pass through was not high enough in the fire box. Digging down allowed for the fire to be plenty low and far from the lid while also making the pass thru at the very top of the firebox if that makes sense.

I got a piece of steel for the fire box lid but still need to come up with something better for the cooking chamber lid. That corrugated stuff worked fine for the hog pit but now as a smoker that I want to draft well, it isn't great. I was waiting to make sure the design was going to work well before getting a big piece of steel to make a tighter sealing lid but after this weekend cook of ribs and pastrami I think I'll go ahead and do it.https://uploads.tapatalk-cdn.com/20190910/553c07d20fca3bf818aa8376c3c21106.jpghttps://uploads.tapatalk-cdn.com/20190910/8a2d9b1f44bb70915bfb2088c6d739b3.jpghttps://uploads.tapatalk-cdn.com/20190910/b9edbbc80e7d5ede8a1c1433644c06b2.jpghttps://uploads.tapatalk-cdn.com/20190910/d41f7f191f7e2bb9a871cd0e9baee8f9.jpghttps://uploads.tapatalk-cdn.com/20190910/6395843ec315d99c6770a3b52a08a82c.jpg

patrickd26
09-09-2019, 09:34 PM
Are you an engineer by profession? This was WAYYYYY too thought out. lol

cowgirl
09-09-2019, 09:38 PM
Nice work!
Mine's not air tight. I just add hot coals to each end, (under hams and shoulders when cooking pigs) the center cooks by indirect heat.

Casey3115
09-09-2019, 09:49 PM
Are you an engineer by profession? This was WAYYYYY too thought out. lolWell it didn't start thought out. Was just a pile of blocks but after lighting fires in it and watching it draft, checking temps at the grate in different spots, etc it turned into this.

And I am actually an engineer too. Coincidence though.

patrickd26
09-09-2019, 10:27 PM
...And I am actually an engineer too. Coincidence though.

Funny! I'm not an engineer, but I work with a $hit ton that are. I can spot your breed a mile away. Anyone reading this... Don't argue with this man! He definitely knows what he's doing! And, most likely... he's correct. Have a good night!

Weaverspitbbq
09-10-2019, 01:52 AM
Ife is trial and error ...necessity is the mother of inventing

ebijack
09-10-2019, 04:09 AM
Nice!
Here is just one from another Brethren.
http://www.bbq-brethren.com/forum/showthread.php?t=246017

effinUker
09-10-2019, 05:56 AM
That's just awesome.

creek bottom
09-10-2019, 07:26 AM
Very cool!!! The food looks pretty amazing too!!! :thumb:

charcoalwilly
09-10-2019, 08:00 AM
That is fantastic. How did it compare to cooking with other traditional smokers?

BBQ Bacon
09-10-2019, 08:01 AM
Nice. How well would this hold up to real high temps? Wondering how this would work for a outdoor oven/pizza oven.

ModelMaker
09-10-2019, 08:22 AM
This is what happens when you sit in a lawn chair with a beer and get a stupid idea...

As a rule Engineers engineer and Model Makers make models. Once in a while you find a few of us that excel at both!
Ed

Casey3115
09-10-2019, 08:27 AM
That is fantastic. How did it compare to cooking with other traditional smokers?Very similar to other offsets I have used. The thing is really big though so I am adding wood more frequently.

Casey3115
09-10-2019, 08:30 AM
Nice. How well would this hold up to real high temps? Wondering how this would work for a outdoor oven/pizza oven.I don't think it would. The blocks around the firebox get hotter than I thought they would. It would need to be lined with fire brick. And the metal lid I have on there is only 12 gauge. It starts to deform if I get the smoker up to 300 in the food chamber at grate level.

Casey3115
09-10-2019, 08:37 AM
This is what happens when you sit in a lawn chair with a beer and get a stupid idea...

As a rule Engineers engineer and Model Makers make models. Once in a while you find a few of us that excel at both!
EdThis is interesting. I'm actually a design engineer. I am a builder, designer, do a lot of model making and prototyping.

KClandcruiser
09-10-2019, 08:45 AM
That is a sweet set up, that looks awesome! Now you've got me wanting to build one of these

SweetHeatBBQnSC
09-10-2019, 09:16 AM
Great idea and execution.

pitbossJB
09-10-2019, 11:29 AM
I knew a guy that was going to throw a big party, I told him we should build one of these to cook two pigs. Some other guy persuaded him to bury them with a bunch of coals, that was a waste of two pigs, he should've listened to me. Oh well!

pitbossJB
09-10-2019, 11:30 AM
By the way, nice cooker!

greenmountainsmoke
09-10-2019, 11:34 AM
Built a similar, much simpler version of this over the summer. VERY easy to put together and the total cost was less than $200. Cooked some of the best ribs I have ever done on it.

arclite
09-10-2019, 01:39 PM
I love everything about this thread!

Well done.

WhitesideJC
09-10-2019, 01:45 PM
This is great, and I'm going to do some detailed reviewing and may be asking a few questions. I tried setting my block pit up as an offset, but I couldn't get it to draw appropriately. I just burn a fire inside and put everything else on the other side, which has worked well in the past.

Casey3115
09-10-2019, 01:51 PM
This is great, and I'm going to do some detailed reviewing and may be asking a few questions. I tried setting my block pit up as an offset, but I couldn't get it to draw appropriately. I just burn a fire inside and put everything else on the other side, which has worked well in the past.Absolutely. Ask away.

Casey3115
09-10-2019, 01:55 PM
I knew a guy that was going to throw a big party, I told him we should build one of these to cook two pigs. Some other guy persuaded him to bury them with a bunch of coals, that was a waste of two pigs, he should've listened to me. Oh well!Wasting two pigs brings a tear to my eye.

Casey3115
09-10-2019, 01:57 PM
So as I mentioned I did cook a pig before but this wasn't assembled quite the same way. I'm planning on a pig roast soon. Plan is to have a solid steel lid on the food chamber at the time. So I will smoke the pig in the offset and then to finish I will add coals to the food chamber lid to crisp up the skin with more direct heat. Like a caja china grill for the finish. Should be another fun experiment, any thoughts on that plan? Anyone done something similar?

Casey3115
10-10-2019, 09:07 PM
Well I went ahead and replaced the lid on the food chamber with a piece of 14ga steel. I had to test it out so we smoked a 50lb hog for our Sunday meal. I lit the grill at 10pm Saturday night and we ate around two or three pm on Sunday. Turned out amazing. https://uploads.tapatalk-cdn.com/20191011/722ac5c07103b9385e33c116b04ae578.jpghttps://uploads.tapatalk-cdn.com/20191011/de2e7c942b4fafe19d66572ff6a9dc1d.jpg

pjtexas1
10-11-2019, 06:31 AM
This is farkin awesome!

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KClandcruiser
10-11-2019, 09:18 AM
That is awesome! One fine looking piggie there!!

mchar69
10-11-2019, 06:19 PM
Incredible thread! WOW! Thanks for posting!

Eckie
10-13-2019, 11:37 AM
Where did you get the food grate piece and the lids? I want to make one of these as well since i don't have a stick burner and have some old cinder blocks laying around. Would like to be able to find something for the food grate piece and the lids secondhand to keep costs down.

Casey3115
10-13-2019, 02:28 PM
I bought the grate from a local metal yard. I believe it is 9ga 3/4" expanded if I am remembering correctly (that was over a year ago). It really wasn't terrible, maybe $60. The 12ga lid on the fire box and 14 ga lid for the food chamber came free from a friend at my old job. I am not sure what a metal yard would charge you for those, I would just call around if I were you.

BBQscott
10-13-2019, 05:52 PM
Curious, where is the vent at the firebox? How well does it hold temps? I didn't notice in your pictures. It looks really awesome, I would love to build one of these.

Casey3115
10-13-2019, 09:27 PM
Curious, where is the vent at the firebox? How well does it hold temps? I didn't notice in your pictures. It looks really awesome, I would love to build one of these.There is a sideways block at ground level. I was just looking through my phone but don't see any pics that show the intake really well. I messed around with a brick in front of the intake to regulate intake but in the end it seems to burn best with the intake wide open.

Eckie
10-14-2019, 11:31 AM
Did you use a solid 'cap' block to close up the outer wall where the chimney starts? If not, how did you close that hole?

Casey3115
02-09-2020, 11:52 PM
Did you use a solid 'cap' block to close up the outer wall where the chimney starts? If not, how did you close that hole?I did use a cap block.

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sickhick
02-23-2020, 07:31 PM
Man I'd love to try one of these.

Bigpappa1
02-23-2020, 08:55 PM
This is cool as hell. I've wanted to do one of these before myself, I just haven't had the space. I don't know why, but they are so cool. Nice work!