The general recommendation for checking forced-air cooling system
performance is to use a manometer to check back pressure.
I wonder, isn't the "true" test the CFM in the exhaust? After all, if the
blower can't "push" through the tube/socket back pressure, then the net
result is not enough CFM.
I ask that because while I don't have a manometer (though that is not
insurmountable by any means), I do have an anemometer calibrated to read
CFM. It would seem that a guaranteed test is to be able to measure the
recommended CFM in the exhaust air, if the exhaust is sufficiently ducted.
Thoughts?
Scott Townley NX7U
Gilbert, AZ DM43di
mailto:nx7u@cox.net
http://members.cox.net/nx7u
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