OAK pipe length/wind question

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They Call Me Pete

They Call Me Pete

Burning Hunk
Nov 18, 2007
206
CT
Any limits on how long it can be ? I need to add one and it won't be more than 2 ft long. My house is actually to tight. Who would've that that was possible.


Anyone have it in a windy location ?? I could make life easy and core bore through chimney but it would be on the windy side of the house. I'm wondering if it would act like a chimney and pull smoke out through it.
 
I don't know if there is a maximum length. But, I do know that 2 feet should be perfectly fine.
 
2 feet or 20 feet makes no difference. At around 30 feet you may have to up the size.
 
My OAK is about 8' long and has 3- 90 degree elbows in it and a coarse mesh screen on the intake. It works just fine, and I feel it's worth it.
I know that OAKs are subject to much debate, but my personal experience is that I'm married to a horticulturist, and we have a bazillion house plants that live outside in the summer, and come in for the winter. Since I installed the OAK, the plants loose many less leaves than before. I know this isn't scientific, but we really noticed the difference.
 
I'm I think it's now going to end up being about 15' of 4" pipe out the back of house instead of the side. South side gets a lot of wind and I'm worried it may act like another chimney.
 
If it's on the windy side, it would be exposed to higher pressure and not reverse draw. It's only in rare cases when it's on a leeward side that the wind may create a low pressure near the OAK intake reversing it, and then only when the stove is first lit and flue draft not yet established. It is prudent to install it with clearance to combustibles just to be sure. It sounds like boring through the chimney would be the best route.
 
Brian in Michigan said:
What does OAK stand for? Outside air.....
Click to expand...
OAK = Outside Air Kit
 
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