My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on.your_Assholiness t1_iya7a7y wrote
The spring is a BI- Metal strip that expands at different rates to tip the mercury switch and make contact.
your_Assholiness t1_iya7ht1 wrote
sorry I only read the first entry... I agree with ksquires1988 it's a bi-metal strip
Viewing a single comment thread. View all comments