Barometric Damper and direct vent

 
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nepacoal
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Posts: 1696
Joined: Wed. Nov. 21, 2012 7:49 am
Location: Coal Country
Stoker Coal Boiler: Keystoker KAA-4 / "Kelly" and an EFM 520 at my in-laws
Hand Fed Coal Boiler: Harman SF-260 - retired
Coal Size/Type: Buck

Post by nepacoal » Fri. Nov. 09, 2018 7:26 pm

Good plan. You are measuring the draft through the hole in the ash door, right?


 
User avatar
nepacoal
Member
Posts: 1696
Joined: Wed. Nov. 21, 2012 7:49 am
Location: Coal Country
Stoker Coal Boiler: Keystoker KAA-4 / "Kelly" and an EFM 520 at my in-laws
Hand Fed Coal Boiler: Harman SF-260 - retired
Coal Size/Type: Buck

Post by nepacoal » Fri. Nov. 09, 2018 7:43 pm

You say it happens during long idle periods... That sounds like it might be losing the draft during those periods. What type of chimney do you have and how tall is it?

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