Chimney photos with some dimensions

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Darryl Ponder
Posts: 324
Joined: Sun Feb 10, 2013 12:10 pm
Location: Minnetonka, MN

Chimney photos with some dimensions

Unread post by Darryl Ponder » Thu Mar 28, 2013 2:14 pm

Here are more photos of the chimney I built out of 8" x 14" air duct. It works very well and is very easy to build. The duct I bought off Craigslist, cheap. There is no smoke shelf. I started to put in a smoke shelf, but wanted to try without one first and found there was no need to have a smoke shelf.

You can see a small piece of angle iron riveted across the front bottom for structural support. There is also a small shelf type "hood" that is removable. If I need to rotate something large on the fire that might interfere with the hood I can remove it. I found by experimentation that the small flat shelf type hood increased draft into the chimney by a significant percentage. As a total guess, I would say 15%. I held various forms of "hood" in position while having a nice fire going and this simple piece of sheet worked best.

This chimney really sucks! So much so that when I use it I place a few firebricks to the back and sides to keep the flame from burning through the sheet metal of the duct.

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CIMG1840 (Medium).JPG (304.5 KiB) Viewed 4710 times
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CIMG1839 (Medium).JPG (279.3 KiB) Viewed 4710 times

Posts: 71
Joined: Sat Mar 09, 2013 8:27 am

Re: Chimney photos with some dimensions

Unread post by Marty.Hicks » Thu Mar 28, 2013 7:18 pm

Impressive stuff Darryl. By the way, thanks for setting up the new Bellows. It's awesome.

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