Thermostats are an important element to your air conditioningA process that maintains comfort conditions in a defined area. and heating system. A thermostat is a device installed in coalition to your system and controls your homes climate according to the desired set temperature. Digital thermostats help to regulate your home’s temperature much better than the old style mercury thermostat. Digital thermostats are more efficient and accurate. Mercury is a lethal element, which must be disposed of properly when replacing your thermostat to a newer digital version. Air Zone Cooling & Heating provide contractor grade thermostats, which include an Indiglo feature and also come with a five year warranty.