peace
New Member
Posts: 19
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Post by peace on Jan 25, 2011 11:41:20 GMT -8
Hi, My name's Daniel Frey and I have an 8 inch system with 22 feet of bench before it rises 13 feet inside up through the cieling. THe thing has worked GREAT for 3 months straight.
This morning after firing it extra long, I noticed smoke escaping from the vertical stack in side: the female is facing up. So there seems to be not enough suck and smoke is coming out through the crack inbetween the downfacing male piece. THis is about 3 feet below the cieling.
Thanks
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Post by nedreck on Jan 25, 2011 23:50:16 GMT -8
In my area that is called installing the flue backwards, the male is to point up and the female down and such is in the uniform mechanical code. Other areas have different opinions.
Fix = reverse the flue pipe (they make crimpers to create male from female) or seal with other suitable heat resistant sealant.
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Post by rocket_richard on Jan 26, 2011 8:08:07 GMT -8
I'm interested to see what the verdict is on this one. One "pro" I can think of for having the female facing up is that any moisture/condensation accumulation caused by low exhaust temps would stay contained within the pipe if there was enough of it to drip down the inside. It would hopefully drip down to a hotter part of the flue to evaporate and get a second chance at escaping. The female facing down method matches the flow direction of the exhaust. As for a cause of your problem, here's a thought. What if your extended burn caused a higher than normal stack temperature that caused more expansion at the joint? Just a thought. Sealing it up seems like a good solution.
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Post by northriver on Jan 26, 2011 11:44:17 GMT -8
One "pro" I can think of for having the female facing up is that any moisture/condensation accumulation caused by low exhaust temps would stay contained within the pipe if there was enough of it to drip down the inside... This seems to be the reasoning behind installation standards in Canada ... the specification is for the male end oriented towards the stove. Sealing the joint in some manner would help (tape or mastic?). Is it possible that a build-up of ashes anywhere in the stove has created a partial blockage and is contributing to this problem? |
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