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Yes
Sorry, there was a problem. Please try again later.The internet is so you can control the thermostat from your phone or tablet. It's also for updates. To answer your question no. If you don't have or intend to get internet you can use it. You need to make sure you have a 5 wire to the thermostat.
Sorry, there was a problem. Please try again later.No, the thermostat works without internet service.
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