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Furnace Filter Slot

jim_51
jim_51 Member Posts: 69
in THE MAIN WALL
Hi

I have a gas forced air furnace and the slot where the furnace filter is inserted is uncovered. Should I seal the top with tape or something or leave the slot uncovered?



Thanks for your advise.

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 24,857
    If the filter

    is really the right one for the application, it should be a reasonably tight seal once it's put in there.  You can cover the slot with tape or something -- it won't hurt anything -- but it shouldn't need it (you shouldn't be able to feel air either coming in or coming out!).



    Keep in mind that with scorched air you're going to want to change or clean that filter pretty regularly...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • JStar
    JStar Member Posts: 2,752
    RE

    Any time you have an opening in the return ductwork, there is the risk that the furnace blower will draw in exhaust air from the mechanical area. It should be sealed, if only for safety concerns. 
This discussion has been closed.

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