"dpb" wrote in message
...
On 7/11/2013 11:14 AM, Jim Wilkins wrote:

Really on if the blades have stalled.

And if there's increased head resistance, that's a partial
stall...or at least more work to keep going against it.


Just checked with a Kill-A-Watt. A muffin-sized centrifugal blower
draws 24W open, 18W with either the intake or exhaust blocked.
jsw