First smoke on homemade vertical insulated reverse flow

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Brett Juneau

Newbie
Original poster
Jan 17, 2018
16
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Decided to do some spare ribs and leg quarters for my first smoke and got started at about 7:30 yesterday morning. I filled my water pan with about 3-4 gallons (i now realize this was probably way too much water). I preheated the smoker with a torch until I felt the temps were up to around 200 or so. Filled the chimney starter with about 50 briquettes (1/2 full) and got them going. Filled up the remaining space in the charcoal basket (15” x 15” x 5”) and set it in the fire box. When the thermometer on the smoker read 200 I cut back on the intake damper and let it get to 225 then put the ribs on. Shortly after my temp started falling and settled at around 180f so I opened back up on the intake and waited for the temp to come back up. After an hour and no ride in temps I open up the fire box and see that all my charcoal has ashed over but still burning hot, surely this is because I’ve been running with the intake fully open. This makes me wonder if I need to build some baffles for my basket?? After I added more coals I decided to drain the water pan down to about 1” (pan is 18” x 18” x 5”). Temperature was still slow to get up, but the water evaporated rather quickly. Over the next hour my temp shot up to 260 and still slowly climbing, I probably had too much lit charcoal in the fire box by now.

Anyway, would like to get thoughts on the water keeping the temps down and forcing me to burn so much fuel.

Smoked the ribs for about 3 hours at the low temp of about 180 (tel-tru door thermometer). Then I sauced with 1/2 head country bbq sauce and 1/2 apple cider vinegar for the next 2 1/2 hrs, temp was at 215 tel-tru and 260 according to my air probe (thermoworks chef alarm) hanging out in the middle of my cooking chamber. I pulled them when I could slide a toothpick in and out easily without resistance. Overall I’m happy with the way the ribs came out but I need to sort out a few things, so I have a few questions for the more experienced...

1. Should I abandoned the water next time? My theory is with so much water volume and surface area, the evaporative cooling is preventing my cooking chamber from getting hot. Considering placing a few fire bricks in the pan for the next cook.

2. Should I build some baffles in my charcoal basket to slow the burning of the charcoals? I would expect this to slow the rate of my fire catching the unlit coals so quick. I may try a cook with no water before this though.

Hope this post isn’t too long, but I wanted to give details. Looking forward to feedback.
 
That's a great looking build!
And your Q looks pretty darn good to me.
I think you just need a few more smokes on it to get it dialed in.
As a side note, I use lava rock in my water pans, then add water & when the water evaporates the rocks act as a heat sink.
Al
 
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Reactions: jcam222 and SonnyE
Good looking stuff and nice smoker! You have the proper ideas on how to get the smoker to act the way you want.You just need some trial and error beta testing.Cute taste tester:)
 
Thanks for the compliments everyone. I fired up the smoker today again with the intent of just another practice run and the smoker got up to operating temp within about an hour with any water.only filled the charcoal basket about 1/2-3/4 full and it held steady temp for a solid 5 hrs with only minor adjustments. Since I had it warmed up already I decided to throw in a few pecan chunks and smoke a pork tenderloin. For now I think I will just line the pan with foil to ease in clean up and leave the water out.

I do have another question though... my tel-tru is always 25f-45f lower than my thermoworks air probe. I’m sure digital probes are more accurate depending on placement but is it normal for there to be such a big difference? I set the air probe thermometer at the same level as the tel-tru only difference is the tel tru is mounted in the door of course. I would really like to rely on the tel tru for convenience because I can’t slide out the rack that has the probe clipped to it (I slide the probe in from the back through the exhaust port) but looks like this may not be an option. An alternative would be to route through the door but my seal is very snug with the gasket and clamp latches.
 
The build looks great and the Q looks fantastic, but I want the Mustang I kept seeing in the pics :-)

Making space in the garage,
Robert
 
Sorry for the delayed response, finally back here for an update...

Sonny - My friend asked me to build him a vertical insulated reverse flow smoker, and I figured I'd do one for myself while I'm at it. I'm not sure what they weigh, my guess is 400 lbs each?

I've been playing around with different methods and I'm beginning to lean away from water. With the water pan just over half full (3-4 gallons), I cant get the temp above 200. I suspect the cooling effect from water evaporating is causing this. If I reduce the amount of water (down to about 1" deep in a pan that's 18" x 18") then it all evaporates quickly and not really worth putting it in there. The reason I haven't fully given up on water yet is because it keeps the temperatures incredibly even throughout the cooking chamber, most of the time within 1-2 degrees top to bottom. With no water in the pan, the temperature difference top to bottom is sometimes as high as 50 degrees. With no water, the bottom grate gets so hot because its sits about 5 inches above the firebox and only separated by a 3/16" steel plate. I am considering alternatives to water such as sand, brick, or a combination of brick or sand with a smaller water pan sitting on top. My hope is to create some sort of insulating barrier to keep the bottom level of cooking chamber cooler while increasing the overall temperature.

Suggestions are welcomed!
 
All Looks Great, Brett!!!:)
But how can you miss with such a cute little Pitt Boss!!
Like.

Bear
 
Sorry for the delayed response, finally back here for an update...

Sonny - My friend asked me to build him a vertical insulated reverse flow smoker, and I figured I'd do one for myself while I'm at it. I'm not sure what they weigh, my guess is 400 lbs each?

I've been playing around with different methods and I'm beginning to lean away from water. With the water pan just over half full (3-4 gallons), I cant get the temp above 200. I suspect the cooling effect from water evaporating is causing this. If I reduce the amount of water (down to about 1" deep in a pan that's 18" x 18") then it all evaporates quickly and not really worth putting it in there. The reason I haven't fully given up on water yet is because it keeps the temperatures incredibly even throughout the cooking chamber, most of the time within 1-2 degrees top to bottom. With no water in the pan, the temperature difference top to bottom is sometimes as high as 50 degrees. With no water, the bottom grate gets so hot because its sits about 5 inches above the firebox and only separated by a 3/16" steel plate. I am considering alternatives to water such as sand, brick, or a combination of brick or sand with a smaller water pan sitting on top. My hope is to create some sort of insulating barrier to keep the bottom level of cooking chamber cooler while increasing the overall temperature.

Suggestions are welcomed!

Well Brett, in my time doing smoking, I have never used a water pan. :eek:
I'm old school, very old school. I looked towards Salmon hanging on outdoor racks over several small smoking fires used by the Alaskan Natives. Then came from there.
Point being, much less to get more. My thoughts are that smoking is an art for meat preservation. But somewhere along the way Ad Writers (Professional Liars) turned outdoor ovens into smokers, and anything that makes smoke into a smoker.
But, I had to modernize. I was always a DIY guy. But decided after looking around, and finding SMF.com, I wanted to get a MES smoker for the box and the digital heat, then modify as need be to make it my own.
At my age, I don't want to spend days building and welding up. More likely it would become a boat anchor when I'm gone anyway. So buying an electric box, and using the ideas here that work well, melded with my own ideas and 'Speriance got me modernized. But for the most part it's just for me, for Salmon and Nuts, and other stuff that strikes me as might be tasty smoked. (I have a hankerin for some smoked Peanut Butter...) :confused:
I did try water in my MES pan once. But thought, "What am I doing?"
Often I find doing a combo of smoke and finishing another way works for me. Like smoking skin on chicken legs/thighs, then Air Fryer them crispy. Or a bit of smoke, then BBQ some Baby Backs. But none of mine has included water.
So I would encourage you to try your favorite ways without water, just to see if you like it.
Get back to simpler, more caveman like.
Sure, set-it-and-forget-it makes sittin around drinkin some brewskis, guffawin with the folks, and enjoying the kids much, much nicer. But we need those roots, too.
Try dry. ;)
 
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