What is a common thermostat feature in modern heating systems?

A digital display is a common feature in modern heating systems' thermostats because it provides clear visibility into the current temperature settings and allows for more precise adjustments. Unlike mechanical controls, which can be less user-friendly and may require turning knobs or pressing buttons without a visual interface, a digital display enhances the user experience by showing readings in numeric form. This feature often includes additional functionalities such as programmable settings, allowing users to set different temperatures for different times of the day or week.

Digital displays also often integrate advanced features like Wi-Fi connectivity, enabling remote control through smartphone applications, which is a significant advancement over older technologies that relied solely on manual settings. This shift towards digital technology in thermostats reflects the overall trend in HVAC systems aiming for greater efficiency, user convenience, and energy management.