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  1. #1
    Join Date
    Apr 2006
    Posts
    81
    Could someone tell me how hot the air should be that comes out of the registers when the emergency heat is on?

  2. #2
    Join Date
    Apr 2006
    Posts
    81
    Forgot to mention this is a 5ton Goodman HP.

  3. #3
    You would need to know the size of the heater kit. Should be notched out somewhere on the HP placard.
    5kw, 8kw, 10, 15, 20, 25, etc.
    It could also depend on the blower speed but we could assume 400cfm / ton to get you an approximate temp.

  4. #4
    Join Date
    Apr 2004
    Posts
    7,680
    luke warm.

  5. #5
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,248

    > Room Temp < Body Temp

    Originally posted by kkmcewen
    Could someone tell me how hot the air should be that comes out of the registers when the emergency heat is on?
    87.65 ' F
    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

  6. #6
    Join Date
    Mar 2004
    Posts
    1,042
    Typically auxiliary/emergency heat comes on in two or three stages on a sequencer (a fancy time delay relay). You may find that it's lukewarm for a few minutes, then warm for a few minutes, and if you leave it on for a good while, it will get hot.

    Truth be told there is a huge amount of variation in what you should get, depending on a large number of variables. It's hard to say what you should see. It's easy for a technician on-site to test the heaters out electrically to make sure that all the circuits are working, though.

    If it seems like the heat output isn't what it used to be, it's a common failure to lose one of the circuits in the electric heaters and have less heat output than you used to get.


  7. #7
    Join Date
    Dec 2006
    Location
    house
    Posts
    36
    30 degrees outside 70 inside with 15kw heat
    should get you about 125 degrees approx supply temp

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