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Old 09-24-2010, 02:24 AM   #1
Mob_Barley
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Default Burner Wind Shield Design Considerations...

I'm going to write an article for my homebrewing website about designing the wind shields around the burners in a RIMS or HERMS system. It seems that the wind shield design is something that can have pronounced effects on the burner's efficiency as well as heat transfer and its intended purpose of keeping the burners from blowing out from high winds.

I'd like to get some feedback from brewers that have tried different designs and based on actual performance, whether the designs worked or not. Any other ideas on wind shield design would be appreciated. I'll let the thread run for a while then compile the best data and write the article. Hopefully it will help others who may not have considered the impact the shields have on burner performance.


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Old 09-24-2010, 03:04 AM   #2
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I made a wind shield for my turkey frier burner. It was a basic round stand on three legs and I made a metal cylinder the diameter of the stand that extends up about 8 to 10'inches and down to just above the burner tube. The bottom two or three inches is perforated metal. The perforated metal turned out to be very important as without it the flame blew out easier than without the shield. I think the perforated metal creates turbulence and keeps the velocity of the air down. Without it it let's wind blow at high velocity through the burner area. I got the idea from a zippo lighter. Now I can run the burner in very high winds and it transmits way more heat to the pot.


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Old 09-24-2010, 02:43 PM   #3
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Do you have a picture?
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Old 09-24-2010, 03:26 PM   #4
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Brewers hardware actually sells one.

When I added a custom shield it made a HUGE difference during cold winter days.
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Old 09-24-2010, 08:04 PM   #5
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Quote:
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Do you have a picture?
I will try to get one this weekend.
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Old 09-24-2010, 08:13 PM   #6
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I just notched and wedged some chimney flue transitions into my BM frame and left them supported by the burner braces. Not an original idea of mine but I stole it nonetheless.
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Old 09-24-2010, 08:38 PM   #7
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I got some 12" Galvanized duct work and fabed up some brackets to hold them under & around my burners. It's works great. they're about 12" tall. I'll try and get some pics.
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Old 09-24-2010, 10:33 PM   #8
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Quote:
Originally Posted by perkins98 View Post
I got some 12" Galvanized duct work and fabed up some brackets to hold them under & around my burners. It's works great. they're about 12" tall. I'll try and get some pics.
Any issues with fumes from the galvanized? I remember reading that you don't want to weld galvanized metal due to the fumes, but I'm not sure if a burner poses the same issues...
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Old 09-25-2010, 07:28 PM   #9
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I too used the duct work and cut notches so the crossbars of my burner stand hold it in place. For the first few brews I was brewing in my basement with a fan blowing on the burner and all the windows open, so never noticed any fumes. The wind shield seems to direct more heat and my boils started just a bit faster, definitely faster when I was able to brew outside. You can see a pic of how I did it.

http://i625.photobucket.com/albums/t..._/IMG_0447.jpg
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Old 09-25-2010, 07:34 PM   #10
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Originally Posted by KingKegII View Post
I too used the duct work and cut notches so the crossbars of my burner stand hold it in place. For the first few brews I was brewing in my basement with a fan blowing on the burner and all the windows open, so never noticed any fumes. The wind shield seems to direct more heat and my boils started just a bit faster, definitely faster when I was able to brew outside. You can see a pic of how I did it.

http://i625.photobucket.com/albums/t..._/IMG_0447.jpg
That is sweet! What size is the duct piece you used?


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