Thermostat knob De Dietrich 7730289

A thermostat knob is the user interface component that allows adjustment of temperature settings on a boiler or heating system. It is typically attached to a thermostat spindle and provides a comfortable grip for turning. A worn or broken knob can make temperature control difficult. Replacing it restores ease of use and precise adjustment. Ensure the knob fits the shaft size and design of your thermostat.