Thermostat | Programmable Thermostats
Thermostats are an essential component in every home HVAC system. Gone are the days of simple mercury thermostats that measured the air temperature and turned the unit on and off when the mercury slid to one side or the other. Modern thermostats are just like miniature computers, that can monitor every process of your heating and air conditioning system and make changes to the settings, faster than you could get up and do it yourself!
Much more popular nowadays are digital programmable thermostats that give you the ability to preset, or program, 7 days worth of information into the thermostat, thus saving you energy!