jan 1, 1830 - Bi-Metallic Thermostat

Description:

"200 years later (1830), Scottish chemist Andrew Ure patented the bi-metallic thermostat he used to keep steam boilers warm. The thermostat worked by physically bending as the temperature grew warmer, eventually cutting the energy supply when it reached a set temperature. Unfortunately, as great as his invention was, the bi-metallic thermostat never really caught on."

Source: https://getmysa.com/blog/thermostat-talk/the-history-of-thermostats-and-their-evolution-to-smart/

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