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gas assist ????????

 
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Joined: 16 Sep 2010
Posts: 21
Location: florida keys

PostPosted: Sat Dec 18 10 3:51 am    Post subject: gas assist ???????? Reply with quote

I use a gas assist homemade smoker to smoke fish.I have used it close to 10 years with a single cast iron burner{low pressure fish cooker}.Just recently I have up graded to 2 18"long cast iron burners{gas grill replacements}and welded them in a "H"pattern,each has its own venturi and supply,valved.When the smoker door is closed I lose 1/2 of the flame,not one side but 1/2 lengthwise.It seems obvious its air related but with the shutter fully open still lose 1/2 of the flame.The lost flame is towards the venturi/supply end.The flame is lost on both burners.Hopefully this makes sense in the way of a question.Thanks.
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hvac81
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Joined: 12 Sep 2005
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Location: Fort Mill SC

PostPosted: Sat Dec 18 10 8:16 am    Post subject: Reply with quote

You do not have enough "secondary airflow"...IE you are in-putting more than you have draft.
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Cranky Buzzard
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Joined: 13 May 2008
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Location: Plano, Texas

PostPosted: Sat Dec 18 10 9:19 am    Post subject: Reply with quote

hvac81 wrote:
You do not have enough "secondary airflow"...IE you are in-putting more than you have draft.


+1 with HVAC.

HVAC, where ya been dude?!?!

Charlie
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hvac81
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PostPosted: Sat Dec 18 10 6:43 pm    Post subject: Reply with quote

I visit sometimes. Winter is my computer time.
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Joined: 16 Sep 2010
Posts: 21
Location: florida keys

PostPosted: Sat Dec 18 10 8:39 pm    Post subject: Reply with quote

Not exactly sure what secondary draft is?Do I need a larger air supply for the cooker itself?Thanks for the input.
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Tony
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Joined: 06 Feb 2005
Posts: 3482
Location: Rehoboth Beach ,Delaware

PostPosted: Sat Dec 18 10 9:15 pm    Post subject: Reply with quote

Cranky Buzzard wrote:
hvac81 wrote:
You do not have enough "secondary airflow"...IE you are in-putting more than you have draft.


+1 with HVAC.

HVAC, where ya been dude?!?!

Charlie


X 2 with CB and HVAC...Also - How was the orifice size and
venturi configuration arrived at?

A few pictures might help us to help you solve your problem. Wink

Best Regards,

Tony Very Happy
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hvac81
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PostPosted: Sat Dec 18 10 9:40 pm    Post subject: Reply with quote

I hope this helps explain it



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Joined: 16 Sep 2010
Posts: 21
Location: florida keys

PostPosted: Sat Dec 18 10 11:44 pm    Post subject: Reply with quote

A picture is worth a thousand words,thanks.It does appear as though it needs more air,with the door open its just right.The diagram is exactly what I have x2.I think the orifice is as large as I can go for the proper mix,do not remember what it was drilled out to.Thanks again guys.
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Tony
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Joined: 06 Feb 2005
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Location: Rehoboth Beach ,Delaware

PostPosted: Sun Dec 19 10 12:16 am    Post subject: Reply with quote

hvac81 wrote:
I hope this helps explain it





Nice Work, Dennis! Cool

gotcha...Ya'll can take this one to the Bank!


Best Regards,

Tony Wink
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