Average Reviews:
(More customer reviews)We have been having some issues with our furnace. A tech suggested that we not use a high efficiency filter (Filtrete 1250) because this reduced the airflow and caused the furnace to run hot.
I did lots of research about this. It's hard to find specs for filters. So I bought about 5 different types. I set up a crude "device" to compare the airflow from each: taped a half-sheet of notebook paper to a vent in our dining room, then swapped filters and measured the distance of the paper off the floor for each one. I did find measurable differences, but knew this was pretty rough.
So I bought this filter gauge. It confirmed my tests but with much more accuracy. Compared to the filter I finally ended up using (a polyester one sort of like the cheapo fiberglass) a brand new Filtrete registered as "dirty" with the gauge.
One more hint for anyone doing the testing I did: we have an instant-read thermometer we use for cooking. I taped it to a heat duct right next to the furnace to see the difference in the temp with different filters. This was crude too, but it worked (as far as showing the differences between filters, but not the actual heat rise in the furnace).
Click Here to see more reviews about: General G-99 Air Filter Gauge Kit
The remote mount kit allows for mounting the gauge up to ten feet from the sensing location. This easy-to-use gauge monitors filter media loading so the media may be changed when needed.
Click here for more information about General G-99 Air Filter Gauge Kit
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