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  • Amazon Smart Thermostat set to 68 degrees with white background
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    Amazon

    Amazon Smart Thermostat

    Save today. Keep saving all year. The Amazon Smart Thermostat is ENERGY STAR® certified. Certified thermostats are required to save an average of $50 on yearly energy bills. Learn more about...

    $76.00
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We just need to confirm that you are an Ameren Illinois residential customer.

Please enter your Ameren Illinois residential account number and the zip code for your account’s residential service address.

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