One Hour Air Conditioning & Heating® of Coastal Georgia One Hour Air Conditioning & Heating® of Coastal Georgia Free WIFI Thermostat $400 value Free WIFI thermostat with a complete system change out 16 SEER and above. These are energy savers and allow you to monitor your system while you are away. Installation and setup included in this offer. Terms and conditions apply. Offer valid on new Premiere and Optimum systems only, excludes deluxe and basic systems.