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  1. #1
    Join Date
    Jun 2008
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    17
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    Replacement for Honeywell Thermostat TH8321U1006

    My TH8321U1006 two cool stage/ three heat stage Honeywell thermostat is no longer working after 8 years of service.
    I'd like to replace it with a Honeywell wifi unit.

    Would someone recommend as close a replacement model as possible? The new unit will need to drive a two stageTrane AC

    thanks.

  2. #2
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    39,315
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  3. #3
    Join Date
    Jun 2008
    Posts
    17
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    Thread Starter
    Will this one also work:

    RTH8580WF

    I can buy it today rather than wait for the other one to be ordered.
    Thanks

  4. #4
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    39,315
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    It looks like 2 stage so should work. The RTH consumer models have 1 year warranty, TH contractor units have 5.

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