“I do not have 24volt. Will the Wi-Fi work with the batteries?”

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• The batteries are for backup, this thermostat will not work on a millivolt system unless you install a 24 volt AC Transformer and 24 volt AC relay to control your millivolt system... you can look up on the internet a wiring diagram that shows how to hook this up....

  Answered by JohnnyCosolo 9 months ago

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