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  1. #1
    Join Date
    Aug 2008
    Posts
    1

    Question Is it better to insulate or replace furnace and AC?

    I recently bought a house in Cleveland that was built in 1926. No wall insulation, the furnace is about 20 years old, but is a 90% efficiency and 80,000 BTU. A/C unit is an 8 seer 3.5 ton. My house is about 2100 sq. ft. Is it going to better my utility bills to pay $3300 to have the house insulated or replace the Furnace and AC at $5600?

  2. #2
    Join Date
    Feb 2008
    Posts
    59

    Default Re: Is it better to insulate or replace furnace and AC?

    i'm no expert but 90 percent is great go for the insulation it will help with your a/c to

  3. #3
    Join Date
    Aug 2007
    Location
    Maryland
    Posts
    1,159

    Default Re: Is it better to insulate or replace furnace and AC?

    Insulate first. Walls & attic.
    The 8 seer A/C unit sounds old & is probably near the end of its lifespan. Replace it when you can or have to.
    The 90% furnace I would leave alone.

  4. #4
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: Is it better to insulate or replace furnace and AC?

    Ditto on the insulation.

    You can look at the heating/AC system next year ... though you should consider having the furnace checked over for the next heating season.
    "" an ounce of perception -- a pound of obscure "
    - Rush

  5. #5
    Join Date
    Aug 2008
    Posts
    54

    Default Re: Is it better to insulate or replace furnace and AC?

    A 90+ furnace is one of the more efficient units on the market today, if it is good, leave it alone and go for the insulation, you'll save much more. MAKE SURE, however that the furnace is in safe operating condition. Tightening up a home through insulating and air sealing can make a dangerous situation worse if you have a cracked heat exchanger. If you must replace the furnace, there are new 90+ models with modulating gas valves and variable speed blowers (not just 2 or 3 stage) that are definately worth looking into. In any case, make sure you have at least one carbon monoxide detector working in your home.

  6. #6
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,557

    Default Re: Is it better to insulate or replace furnace and AC?

    Insulate, you'll save very little updating the equipment if you're heating the outdoors.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

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