Adding filter to Rheem Criterion ii gas furnace


Old 04-19-14, 10:57 AM
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Adding filter to Rheem Criterion ii gas furnace

My Rheem Criterion ii gas furnace comes with 2 thin permanent filters (part 54-24094-01) in V formation over blower. I want to add some filtering improvement as these seem inadequate - but also do not want to do anything that creates too much burden on the fan. Any ideas of a legit way to replace or add filtering? I've thought of even just adding the webbing type filter that you can cut to size.

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Old 04-20-14, 02:14 PM
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Do you have a/c? If not, the permanent filter should be okay - you're just trying to keep the blower wheel clean.
Old 04-20-14, 06:26 PM
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As long as those permanent filters are intact, they do a pretty good job of filtering. Since this would seem to be a downflow furnace, installing other filters would probably be a job for a professional.

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