My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on.D_daKid t1_iyblqnc wrote
Reply to comment by crispy1989 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
Thank you for your descriptive response. If I had an award I'd give it to you! 😂
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