Of all the improvements made to the HVAC industry, thermostats are responsible for indoor comfort. Back in the dark ages (the 60’s) everyone had the Honeywell round thermostat that kept the temperature within 2 degrees of set point.
With the perfection of electronics we now have both programmable and non-programmable thermostat, we have wireless thermostats that are no longer attached to the wall allowing the customer to place it where ever they want. But the greatest upgrade is the Wi-Fi thermostats which allow the customer to control and monitor their homes environment from a computer or smart phone. With some manufactures systems you can see different areas of the home and even have the thermostat alert you if there is a problem. Like we always say “we don’t install heating and cooling units, we install comfort systems”