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Jim Elbrecht Jim Elbrecht is offline
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Default Washable Electrostatic Furnace Filters - Use While Wet?

(PST), wrote:


-snip-

The best thing to do is see how fast they get dirty in your particular
application and adjust accordingly.


Yup-- about 100 hours of usage works for me in my house. Sufficient
grunge to let me know it was really time- but no decrease in airflow
at the registers.

Thankfully my cheap thermostat keeps track of the time for me. Works
out to about 2-3 changes per winter season. [often Sept to April] If
I think about it I wash the filter in the summer and zero the usage
meter.

Jim