“Barometric damper” air inlet for room with woodstove
Wondering if someone can identify a specific product for this application. The merits of the application might entice some to debate, but I am neither a code writer nor building inspector, just a guy caught between them.
I have a job with a woodstove in an art studio space. It does not have a direct connection from the firebox to an outside air duct, and it would be difficult and costly to accomplish that, because the stove is on a concrete slab, it is against a wall with a garage on the other side, and it’s 12′ from any exterior wall.
The code states that if the stove is installed in existing construction on a slab, that combustion air can be supplied to the ROOM via a “barometric damper”. What I would like to do (and about the only thing I can do) is install some type of through-the-wall inlet with the aforementioned barometric damper within it. The American Aldes airlets do not qualify, per the language on their instruction sheets. There are barometric dampers intended for use with HVAC systems, typically involving a short section of round duct with a damper inside and a weighted arm outside, which can be adjusted for pressure. The problem with the arm outside is that it won’t easily fit in the wall, and putting on the inside of the room will be objectionable.
Anyone know of any sort of damper or valve that would work for this purpose? Ideal candidate would be 4″ or 5″ diameter.
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