“Does this work with dual fuel systems like a heat pump and gas furnace? The last generation stopped engaging the electric heat mode on the heat pump after 6 months, now reversing valve won't switch over from cooling.”

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• My unit did same. Must be an internal malfunction.

  Answered by Techaroony 4 years ago

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• Yes. Nest Thermostat works with most 24V heating and cooling systems. This includes gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal. We recommend using our Compatibility Checker to see if your system is compatible with the Nest Thermostat. Here's the link: https://store.google.com/us/widget/compatibility/thermostat You can also contact one of our specialists to help and assist you: https://support.google.com/googlenest/gethelp

  Answered by Nest Support 4 years ago

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