There's no need to blast the AC at full tilt while you're at work. For central units, install a programmable thermostat that lets you set higher temps when you're gone and cooler temps when you're home. Setting a temperature that is a few degrees warmer in an empty house will allow your system to run less, and still be able to recover in the evening before you return. Free money energy savings! We install programmable thermostats with a few different styles to choose from to meet your needs. We can discuss the advantages to a simple programmable "set-back" thermostat, or a "smart" thermostat that can be accessed remotely and can adjust as your day adjusts. Call Air-tech at 847-639-5336.