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MERV FILTER alternative

Shawnnixon1 | Posted in General Questions on

I ordered a Panasonic ERV IB 200 and the merv filter is 130$ canadian…replacing these every 3 months is expensive, does anyone know if anyone else makes these?

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  1. user-5946022 | | #1

    I googled FV-FL1310VE1-MERV-13 and found replacements for $43 each from
    That is a reputable outfit - I've bought from them before...

    Also came up at the same price from Panasonic Factory outlet.

    Faucet Warehouse, which I've never heard of (so somewhat suspect) has them for $31.80, and Northcoast will sell you a 4 pack for $40/each

  2. Expert Member
    Akos | | #2

    The best way is to install an external filter box between the outdoor fresh air supply and the unit. This way it can take a standard furance filter which are much cheaper and last way longer. I use an Fantech FB6 but that is undersized for your unit. Unfortunately there are not a lot of great off the shelf options out there for this. You can try searching as some of the MUA systems do come with a decent filter enclosure.

    If you have a good sheet metal shop, the simplest would be to ask them to mount a set of 6" collars onto say a 14x20x1 (if you want even longer life go for a 16x25x4) filter rack. Wrap it in rigid to prevent condensation.

    1. user-5946022 | | #3

      AKOS - Really great idea. Thank you. I had no idea such a device even exists.

      My intake is at a vent in a soffit, then ducted inaccessibly between a ceiling and floor to the ERV. I found I was removing bugs from the ERV filter, so finally installed a fiberglass screen behind the soffit intake grill. Now I find I have to clean that screen every few months. Wish I could find a thin device for installation at the soffit that would make it easy to remove and reinstall the fiberglass screen often...I've thought of trying to hire a high school kid to 3d print me something...

  3. Shawnnixon1 | | #4

    I dont have a furnace

    1. Expert Member
      Akos | | #5

      This is nothing to do with a furnace. You are simply using a furnace filter as pre-filter for the ERV. This way the internal filter will last longer and if you use a high Merv pre-filter it can be eliminated or replaced with a washable foam filter. The factory high Merv filter is pretty restrictive, replacing it probably drops the blower power use by 1/4 to 1/2.

      This way you are now replacing only standard furnace filters which are much cheaper.

      1. Shawnnixon1 | | #6

        This is why I oversized the ERV, I really need about 110CFM and got a 200 CFM how would I use a furnace filter in the erv? How will it fit?

        1. Expert Member
          Akos | | #7

          The filter is external, mounted in line on the duct that brinings the outdoor fresh air to the ERV.

          The filter is mounted into a filter box, something like this:

          This one is fine for 110CFM but would be too restrictive for 200.

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