“Does this stat work with dual fuel or.hybrid systems where are the heat pump we'll run down to a set point and change over to the gas furnace as the auxiliary Heat and lock out the heat pump.”

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• It will work with oil, gas, hydronic, forced air, heat pumps, but to be sure call Honeywell's technical support at1-855-733-5465 or visit wifithermostat.com.

  Answered by Billebob 6 years ago

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• Hello there! Thank you for contacting us, this thermostat will work with dual fuel as long as you have a fossil fuel kit installed. Have an excellent weekend!

  Answered by Honeywell Support 7 years ago

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