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-   -   convection plate (http://www.bbq-brethren.com/forum/showthread.php?t=154752)

marvda1 02-25-2013 05:11 PM

convection plate
 
is there a formula for the size and spacing of the holes on a convection plate? horizon has one for $60 bucks that would fit my smoker but i wanted to see if i could get one made cheaper with no shipping charges.
here is the one that would fit, i just don't need the lip that's on it.
http://www.horizonbbqsmokersstore.co...sh--For/Detail

1MoreFord 02-25-2013 07:53 PM

Make tuning plates. That way you can tune to your liking.

BigBellyBBQ 02-26-2013 01:17 AM

Quote:

Originally Posted by 1MoreFord (Post 2383876)
Make tuning plates. That way you can tune to your liking.

yeeeup..no matter what brand--shape--color--tune it in like a race car..watch the temps on every grate and use the different temps to tune in your food..

ButtBurner 02-26-2013 03:56 AM

1 Attachment(s)
Quote:

Originally Posted by BigBellyBBQ (Post 2384300)
yeeeup..no matter what brand--shape--color--tune it in like a race car..watch the temps on every grate and use the different temps to tune in your food..

thats what I did

they work great

BigBellyBBQ 02-26-2013 07:01 AM

your plates look grate..weld a little tab that will locate your plates, so if hot they will drop in the perfect spot

ButtBurner 02-26-2013 07:37 AM

Quote:

Originally Posted by BigBellyBBQ (Post 2384395)
your plates look grate..weld a little tab that will locate your plates, so if hot they will drop in the perfect spot

thanks actually I have moved them since that pic. They are 1/4" plate, they dont move very easily!

Pappy 02-26-2013 08:25 AM

Huntin Smoke made this one for me out of a piece of 1/4" plate and a plasma cutter. Holes started out 1/2" and ended 1 1/2". They get larger as you go to the end of the plate.

http://i1117.photobucket.com/albums/...erMods1035.jpg

marvda1 03-03-2013 02:28 AM

if i get tuning plates made, how wide should they be? 1/4 or 3/16 in steel?
i assume that since the bottom of my baffle is 13 1/2 in. olng that's how long the plates should be. how many plates? the cooking chamber is 40.5 in long. cost? if i go with the horizon convection plate the cost would be $60+ shipping.

Smokin' D 03-03-2013 07:36 AM

in my small offset, 16" x 36", there is the fixed baffle which extends about 8" into the cook chamber, and then I have 5 - 5" x 16" x 1/4" tuning plates. Sometimes I use all 5, sometime just 3. It all depends on what's cooking. To learn how they worked, I first used all 5 with varying gaps between them. 1/8" between the first two closest to the fire box, then 1/4", 3/8" and 1/2"+- for the ones further away. The idea is to let heat rise between the plates. Push them all together and the grate temp away from the fire box will actually be hotter than next to it. Experimentation is key here. Have fun!
Oh yeah, a local metal fab guy made up my plates and I paid him with a couple racks of babybacks.

ButtBurner 03-03-2013 07:39 AM

mine are 6" wide and 1/4" thick

they work great.

1MoreFord 03-03-2013 08:32 AM

My pit's chamber is ~40" and my plates are 1/4"T and 4"W. They work well. Anything in the range of dimensions mentioned will work. If you can get some thicker stock that will work too - plus it's adding more heat sink material to the pit as a bonus. Use whatever you can find cheapest and easiest. Don't worry whether it's cold roll or hot roll. Just clean any petroleum oil off of 'em and season with veggie oil.


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