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I'm not familiar with that specific fan and I might be restating the
obvious, but have you ever tested the fan to find if it is truly
venting and, if so, at what rate?<br>
I regularly test residential exhaust fans. Flow restriction, mostly
because of ducting faults or just the flow resistance because of the
length (and or the fact that ribbed flexible ducting has been used.
If I find more than 40% of the rated flow (on all but a few, top end
fans), I start looking for the leak or disconnect.<br>
<br>
You could test the fan itself, with a capture hood and gauge or
measure the depressurization of the space with a sensitive
manometer.<br>
<br>
The other factor is verifying a source of intake air for the space,
to balance the exhaust. Even a great fan probably can't pull
against a closed space; passive leakage is not likely to be
adequate, especially in an intentionally tightened house as I expect
yours is.<br>
Bob Klahn<br>
<br>
<br>
<br>
On 2/19/2012 12:47 PM, KTOT (g) wrote:
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<div><strong><font face="Tahoma" size="2">I encountered
another, potentially very serious, CO problem yesterday
when I equalized my still-new solar batteries with the
exact directions of both my solar electrician and the
relevant manual.</font></strong></div>
<div><strong></strong> </div>
<div><strong><font face="Tahoma" size="2">The batteries are in
an interior utility room but have a “Power Vent” that
goes from above the batteries to the exterior.</font></strong></div>
<div><strong></strong>.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</div>
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