Permanent Filter Installation

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Old 12-13-12, 07:19 PM
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Permanent Filter Installation

Could anyone tell me which way a Permanent Filter should be installed? I have a green one, one side looks like a grid, the other side looks like a scrub pad. The instruction manual for the furnace gave no indication as to direction. There are no arrows on the filter & no frame.
 
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Old 12-13-12, 09:43 PM
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The padded side faces the cold air return and the grid side is closest to the furnace blower. Keeps the green filter material from being sucked into the blower.
 
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Old 12-14-12, 02:55 PM
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Thank You, that helps a lot!
 
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Old 12-14-12, 06:23 PM
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Those filters are far from permanent. After 3 or 4 washings (maybe less), they get so flimsy they won't stay in place. I suggest saving yourself the headache of pulling filter out of the blower wheel by throwing that filter away & getting an ordinary disposable filter of the correct size.
If you really must use that type of filter, go to the hardware store & get some 3/16" rods to stiffen the filter.
 
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Old 12-15-12, 05:38 PM
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Why are you going with these filters?

From my past trying these out, It was not worth it.

-The dirt becomes embeded into the fiber, and they don't come out.

-They are either very restricted on the air flow, or they don't filter out much.

Use the mid-lower ranger pleated filters.. if you must have a better filter, then upgrade to teh 4" media filter that you change out once/twice a year.
 
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Old 12-16-12, 07:18 AM
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Well said Jay. My thoughts exactly. The only reason to use these things, even on a temporary basis, is some equipment's filter rack takes an odd size filter.
 
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Old 12-16-12, 10:12 AM
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if you must have a better filter, then upgrade to teh 4" media filter that you change out once/twice a year.
This may help the OP. I just had my system checked professionally. I have a Carrier inline electronic filter with prefilters in place. He suggested removing them and replacing with the 4" filter media, which should only need changing twice a year.......I did look at him out the corner of my eye, but acquiesced for $49. We'll see. Would like further input if you have it.
 
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Old 12-16-12, 10:51 AM
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Good move Larry. Electronics are great, when they work which is rarely. If the ductwork is tight, the pleated 4" will do a very good job. You likely won't have to change it more than once a year, if that often.
 
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Old 12-16-12, 10:55 AM
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More worms in the bucket.....we have dogs and cats. Does that reduce the anticipated life of the filter dramatically? I think one at each season change, or twice a year would not break the bank.
 
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Old 12-16-12, 10:58 AM
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In a little time, you, better than anyone else, will know how often they need changing.
 
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Old 12-16-12, 01:27 PM
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We have pets, and I change it twice a year, and I run the fan 24/7 in the winter.
 
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