What Is a Wireless Thermostat? A wireless room thermostat is a digital device that allows homeowners to control the temperature of their heating system remotely. You may also hear it called a smart thermostat or Wi-Fi thermostat if it’s an internet-connected device. Unlike traditional thermostats, which rely on physical wiring to connect to the heating system, wireless heating thermostats communicate with the system using radio frequency or Wi-Fi technology.
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