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    Cj Mathis's Avatar
    Cj Mathis Posts: 1, Reputation: 1
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    #1

    Feb 14, 2010, 06:59 PM
    Difference in a single and 2 stage heat pump
    As another person I have a heat pump but unsure if it's a singe or 2 stage heat pump. I have on the current thermostat 1 white, 1green,1 blue,1yellow, 1 orange,1 red, and 1 blk. Wires. Help I'm a single woman trying to put in a programmable thermostat and need your help
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Feb 14, 2010, 08:20 PM

    Colors are less important than the letters they co to. Post letters and colors; e.g. Red = R, G = green. Sometimes it's good to know the brand, particularly if Trane.

    Generally you don't have to purchase exactly a 2 stage stat. A 3 stage stat will most of the time work, but more expensive.

    Do you have aux/emergency heat? This can be considered a second stage.

    Do you have an emergency heat indicator?

    Do you want to keep it?

    Don't buy a Hunter. Look around at www.iaqsource.com. Website is arranged really nice.
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