Barometric Damper Observation

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lsayre
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Posts: 14402
Joined: Wed. Nov. 23, 2005 9:17 pm
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post By: lsayre » Sun. Nov. 29, 2015 8:01 pm

This season I've upped my barometric damper actuation point to 0.06" as opposed to previous years at 0.04" (in order to overcome some issues with it sticking open), and low and behold I'm burning at the same pounds per HDD level as I have in years past (and better than in some years). To date the baro setting change has had no negative impact upon efficiency.

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KLook
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Posts: 3921
Joined: Sun. Feb. 17, 2008 1:08 pm
Stoker Coal Boiler: Harman VF 3000
Coal Size/Type: rice, bagged, Blaschak
Other Heating: Gas boiler backup/main
Stove/Furnace Model: VF 3000
Location: Harrison, Tenn

Post By: KLook » Sun. Nov. 29, 2015 8:04 pm

Oh hell Larry, just take it out and forget about it, or put in an mpd...... ;) Oh crap, here we go again. :D

Kevin

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Lightning
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Posts: 9671
Joined: Wed. Nov. 16, 2011 9:51 am
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size
Location: Olean, NY

Post By: Lightning » Sun. Nov. 29, 2015 8:05 pm

I would expect that result with a modern complex unit like yours. :)

The only way excessive negative pressure could impact efficiency would be if it was inviting more air in that's not contributing to combustion and is giving heat a free ride up the chimney.


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freetown fred
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Posts: 23197
Joined: Thu. Dec. 31, 2009 12:33 pm
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut
Location: Freetown,NY 13803

Post By: freetown fred » Sun. Nov. 29, 2015 9:05 pm

It gets real scary Lee , when ya start talkin about them like they're living entities! :clap: toothy

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Lightning
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Posts: 9671
Joined: Wed. Nov. 16, 2011 9:51 am
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size
Location: Olean, NY

Post By: Lightning » Sun. Nov. 29, 2015 9:44 pm

freetown fred wrote:It gets real scary Lee , when ya start talkin about them like they're living entities! :clap: toothy
What?! You mean they aren't? :shock: :lol:

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