My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on.UnReAl0 t1_iyb0kp2 wrote
Reply to comment by Prindagelf in My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on. by Iain_MS
The really cool part is in the center dial with the numbers. Thats the heat anticipator that helps increase or decrease temperature overshoot in the room. Technology and stuff
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