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Author Topic: Damper in flu pipe  (Read 3603 times)

bizadore

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Damper in flu pipe
« on: July 26, 2010, 11:45:24 AM »
Hello everyone . I am new to the site and I am in the process of building my own boiler. I am wondering if any one has put a damper in the flu pipe . I will have a electric blower on the door. My design is very similar to the Hawken . Just curious if it makes a difference. Thanks
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yoderheating

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Re: Damper in flu pipe
« Reply #1 on: July 27, 2010, 11:42:19 AM »
If your door seals and blower damper are tight enough there is no need to use a damper in the flu.
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Southwest Virginia
WF4000 Heat Master

rosewood

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Re: Damper in flu pipe
« Reply #2 on: July 27, 2010, 08:29:52 PM »
  if no air goes in ,no or very little air goes out. holding heat in.
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bizadore

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Re: Damper in flu pipe
« Reply #3 on: July 28, 2010, 08:36:24 PM »
I was just thinking when the boiler is cycling with the blower on there could be too much flow out of the stack. By putting a damper in the flu stack and a manometer just below the damper i would know what the flow rate thru the stack is .Therefore I could adjust the damper to get a flow rate just a hare on the positive side. I would adjust the damper so that there would not be too high of a flow rate which would waist heat. Just wondering if some of you guys do this.
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