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Unread 03-12-2011, 07:28 PM   #1
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Location: Oakland twp / Houghton Lake, MI
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Default 22.5 WSM fire ring modification w/pics

Well I used my new 22.5 WSM the other night for a short cook, and loved the way it cooked, but had trouble keeping my coals in one nice pile. So it got me to thinking, what if I made a smaller fire ring to contain the coals better? I think I can get better fuel utilization on shorter cooks with a more compact coal bed. I figured I’d start with 50% volume and see where that gets me. So I bought some expanded metal and…..

Original 22.5 fire ring volume
V=∏*8.5^2*4.75 = 1078.30in^3

Half V = 539.15in^3

So bla, bla, bla and a bunch of math, I come up with….
V=∏*5.35^2*6 = 539.59in^3 Close enough to half original V.

Since I’m using flat stock expanded metal I need to come up with a circumference that will determine diameter.

C=∏/10.7 = 33.61in

I took my expanded metal and made cut 6” tall by 33.61” long(or close there to), that when rolled into a circle will give me a 10.7”dia x 6” tall fire ring, that is half the volume of the original 22.5WSM fire ring.

I’m going to give this a try tomorrow on a short cook and see how it works. I don’t have an accurate enough scale, so I guess I will count briquettes to determine how much fuel I used. I would love to hear from any WSM owners, and what you think. Thanks.
Life is to short for green tea and tofu; pass me another half rack and a beerů

Last edited by JONESY; 03-12-2011 at 07:44 PM..
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