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  1. #1
    Join Date
    Oct 2018
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    Confused I was told my furnace/ac were installed incorrectly and should be replaced

    I'm a first year, first-time homeowner who never had to deal with furnaces before. I had a Home Depot furnace tune-up special so they could replace the filter.

    I was told the furnace is backwards, the filter was in the wrong place and the ac (added a few years after the townhouse was built) should be on the bottom of the furnace not the top. They took the filter out and did not replace with a new one as it could be a fire hazard.

    The townhouse was built in 2000, the furnace is original but runs perfect still, the home inspector didn't note anything wrong. The ac and heater run to my liking. But it's going to be a low of 13 degrees tommorrow and I dont have a filter in my furnace so I'm afraid to run it.

    The furnace is in a maintenance closet on the second floor. The home has the air vents at the top of the walls. There are also floor vents only on the second story. I noticed that when I ran the ac unit this summer, the cold air only flowed out of the 1st floor celing and 2nd floor, floor vents. No cold air came out of the 2nd floor wall vents (possibily how they installed the after market ac system?).

    Question - is there a way to install the air filter in my furnace without getting a new furnace/ac? Or without moving the ac unit under the furnace?

    The old owners must of never changed the filter/got anything serviced?

    Gas, forced air, Corsaire, Rheem, model : FGLJ-07EAUER (2000)

    I'm unable to post images/links as a new member. The Floor, the heating, the blower motor, the filter?, the ac thing that looks like a V, vents to the cieling with several ducts.

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  2. #2
    Join Date
    Oct 2018
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    Thread Starter
    It's kind of hard to explain with out the photos

    I need 6 more posts before I can add images

    Need 5 more posts

    almost there

    two more

    last one

    last one?














    Last edited by beenthere; 10-13-2018 at 06:00 PM.

  3. #3
    Join Date
    Feb 2015
    Location
    Ohio
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    You have a down flow furnace and the ac coil should have been installed below the furnace. Where was the filter located? You are going to have to have something corrected and at 18 years old it may be advantageous to change the furnace. There can also be damage to the furnace caused by the coil in that location.
    "If common sense was so common, everyone would have it."

    Do it once, do it right.

    It will take as long as it takes, which will be not as long if you let me do my job.

  4. #4
    Join Date
    Oct 2018
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    Thread Starter
    Thank you for confirming. They said the filter was on the bottom, I'm not sure where it would have fit.

  5. #5
    Join Date
    Feb 2015
    Location
    Ohio
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    The only place I could see the filter might have been was between the coil and the blower, definitely not a good place.
    "If common sense was so common, everyone would have it."

    Do it once, do it right.

    It will take as long as it takes, which will be not as long if you let me do my job.

  6. #6
    Join Date
    Nov 2006
    Location
    Athens, Ohio
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    Evidently your home inspector failed, big time.

    Here is the proper order of components in the air flow stream, in your case, top to bottom - air filter, furnace, A-coil.
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  7. #7
    Join Date
    Dec 2005
    Location
    Cincinnati, Oh
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    Hate to say it, but a worst case senario would be abuse the heck out of it, and when it gets to bad replace it.

  8. #8
    Join Date
    Oct 2018
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    Thread Starter
    The filter was on the very bottom near the actual floor, so not in either of the open doors pictured.

  9. #9
    Join Date
    Nov 2011
    Location
    St. Louis
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    Put a new filter back where it was and let 'er rip. It's not the way it's normally done, and for good reason; but nobody's going to die and nothing is going to burn. It worked this way all this time, right?

    When it's time to replace it, do it correctly.

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  10. #10
    Join Date
    Apr 2003
    Location
    Maple Grove, MN
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    The filter being at the floor isn't really accomplishing anything.

    In order to keep the a-coil and inside parts of the furnace clean (which is really the main job of the air filter) it should be located before everything. In your case it is located after everything.

    I'd be willing to bet that your a-coil is filthy (from the top side that you can't see) and impeding airflow, unless you have return air filter-grills that you haven't noticed yet.

    I'd like to say that the a-coil should be checked and cleaned if necessary and a filter installed above it somehow, however as taylor2 said, it's probably not worth it at this point with how old the thing is.

    Good luck.
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