One in eight U.S. homes uses a programmed thermostat with a central air conditioning unit
(Wed, 19 Jul 2017) Programmable thermostats are designed to help manage energy use, but most of the U.S. households with these controls do not choose to program their thermostats. Based on information collected through EIAâs Residential Energy Consumption Survey (RECS) for 2015, only 12% of the nationâs 118 million households had a central air-conditioning unit that is actually controlled using the programmed thermostat.