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Hi Explorer, thank you for your questions. This thermostat takes the outdoor information from Accuweather (based on your ZIP/Postal Code) once it is connected to Wi-Fi and registered under your account. To verify the compatibility of the RTH9585WF thermostat and your system we need to know what terminals are being used on your current thermostat by your 8 wires. Feel free to contact us at (800) 633-3991 or send us a DM to our Honeywell Home Facebook/Twitter account. We will be happy to help! - Maria
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