common flue

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1

Originally Posted By: ngifford
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Just did an inspection yesterday on a 21 year old house. Exterior temp was 10F with 40 mph wind gusts. Also had 18" of fresh snow from night before. Lots of fun!


In the basement there was an oil fired hot water boiler venting into a single flue masonry chimney. On the first floor was a wood stove venting into the same single flue chimney.

Is this prohibited?

Thanks for your help.

2

Originally Posted By: dvalley
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vent into the same flue. This causes a thick cresote build-up within the flue which in turn causes fires.

–
David Valley


MAB Member


Massachusetts Certified Home Inspections
http://www.masscertified.com

"Some cause happiness wherever they go; others, whenever they go."
3

Originally Posted By: ngifford
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Thanks for the quick response.


My code check says "No connection to gas or oil appliance vent" for wood stoves. I wasn't sure if this applied to just the metal vent pipe going into the chimney or to the chimney flue also.

Thanks again.

4

Originally Posted By: kmcmahon
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Last inspection I did on Sunday it was 15 below. I tried to reschedule, but the owners wouldn’t reschedule… It was a bit chilly to say the least.


I agree with David. I still have yet to inspect an oil fired furnace.

--
Wisconsin Home Inspection, ABC Home Inspection LLC

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5

Originally Posted By: phinsperger
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–
.



Paul Hinsperger
Hinsperger Inspection Services
Chairman - NACHI Awards Committee
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6

Originally Posted By: tpope
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I know nothing about oil furnaces, but while researching the Nachi ‘tip’ page, I found this: http://www.nachi.org/tips/0994.gif


It appears the common flue is okay if they enter on the same floor and the wood burning stove enters below the oil connection as Paul said.

-Tim