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Thread: Heating issue

  1. #1

    Heating issue

    furnace started blowing air that is colder than it should be. On my normal setting(23.5 degrees C) it blows VERY cold air but when I crank it up to 28 degrees or so its blows my normal air. When I looked at the furnace the flame looked normal, and the pipes leading out of the unit were hot. The outside temperature right now is around -26 degrees + windchill. Any ideas why this is happening?

  2. #2
    Join Date
    Feb 2008
    Location
    Altmar, New York, United States
    Posts
    4,355
    is it just a furnace or is it ac too, or a heat pump? you may want to call a pro before it gets too cold.

  3. #3
    Join Date
    Jun 2005
    Location
    SW Wisconsin
    Posts
    4,900
    Provide some return air / supply air temps for us.

    How old a furnace?

    Single stage or multiple stage heating?

    Oil, NG, or propane fuel?

    What is its Input & output Btuh?

    Got any idea what the airflow CFM of the central blower is?

  4. #4
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,248
    Quote Originally Posted by snupytcb View Post

    you may want to call a pro
    _before_ it gets too cold.
    Last time I checked -26'C /
    -14'F was C O L D.
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

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