“I have a duel fuel heat pump/natural gas forced air system w/ central AC. My system also includes a Honeywell steam humidifier and a H-well outside temperature sensor. My current H-well T-Stat controls the entire system-will the RTH9585WF do so as well?”

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• I've been told by Honeywell that it does support a dual fuel heat pump....don't know about the steam humidifier and outside temp sensor.

  Answered by gail 7 years ago

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• Hi abra0095! Thanks for reaching out to us, the Honeywell - Smart Color Thermostat is not compatible with duel fuel applications. Hope this helps! -Joey

  Answered by Honeywell Support 7 years ago

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