Fly Ash on the Barometric Damper Door

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Lightning
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Post by Lightning » Fri. Feb. 27, 2015 7:42 pm

Wow.. It seems my furnace has been growing hotter and hotter over the last couple weeks at the same primary air setting and the draft has been growing stronger with running a hair over -.06"wc. I just chalked it up as the outdoor temp being colder than usual lately. So I did some investigating. I checked the backside of the baro damper door and found at least an 1/8 inch layer of fly ash covering it. I went after it wish a tooth brush and scrubbed it off. The last cleaning was over a month ago. Now I find the baro door open wider and my mano has fallen to a more comfortable -.040 to -.045 and the furnace temp started dropping immediately.

Baros are quite sensitive to any ash build up.
Don't forget to clean your baro doors.. :)

 
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Doby
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Post by Doby » Fri. Feb. 27, 2015 9:11 pm

Thanks for the reminder I know I for one don't do it often enough

 
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davidmcbeth3
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Post by davidmcbeth3 » Sat. Feb. 28, 2015 12:04 pm

Don't have one with my stove....hitzer 503.

Don't need it. Don't want it.

 
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Lightning
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Post by Lightning » Sat. Feb. 28, 2015 12:48 pm

Well good for you.. :)


 
WNYRob
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Post by WNYRob » Sun. Mar. 01, 2015 7:16 am

I just hit mine with a swiffer every few days to keep it clean.

 
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hotblast1357
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Post by hotblast1357 » Sun. Mar. 01, 2015 11:23 am

Surprisingly both of mine never collect anything.. Neither does my pipes.. I wonder why that is? Must just all go out the chimney.

 
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Lightning
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Post by Lightning » Sun. Mar. 01, 2015 11:28 am

hotblast1357 wrote:Surprisingly both of mine never collect anything.. Neither does my pipes.. I wonder why that is? Must just all go out the chimney.
Hmmm something about your shake down routine is keeping fly ash in the firebox possibly?

 
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Rob R.
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Post by Rob R. » Sun. Mar. 01, 2015 11:33 am

Coal source, technique, draft, and pipe configuration all make a difference.

Same thing happens to my Baro. I dust it off once per month with an old paint brush.


 
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hotblast1357
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Post by hotblast1357 » Sun. Mar. 01, 2015 11:40 am

It must be the routines, but they differ with stoves, with my hot blast I clamp the baro shut, and the lip on my baffle is cut off so I can slide it forward for a direct path, quicker tend times, but with the baseburner I just put it in direct mode and shake, I do not touch the baro on it.

 
titleist1
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Post by titleist1 » Sun. Mar. 01, 2015 11:42 am

Good reminder. I'm in the once per month club with an old paint brush also but there is never much on there, just a dusting, no where near 1/8".

Do you find the fly ash residue on your toothbrush to act as a whitening agent....something like baking soda?? :)

 
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Lightning
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Post by Lightning » Sun. Mar. 01, 2015 11:46 am

titleist1 wrote:Do you find the fly ash residue on your toothbrush to act as a whitening agent....something like baking soda??
A heating seasons worth of tooth brushings would wear the enamel right off them.. :lol:
hotblast1357 wrote:with my hot blast I clamp the baro shut
Ahhh, this... Air isn't coming thru it and swirling around in the flue gas path which would draw fly ash into the baro area and throw it up against the backside of the baro door! :)

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