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Does this old acretherm thermostat use asbestos?

I don't know much about thermostats and was just curious if anyone knows?


  • pecmsg
    pecmsg Member Posts: 4,397
    No t-stats used asbestos. 
    Mercury is a possibility 
  • mattmia2
    mattmia2 Member Posts: 8,903
    It wouldn't surprise me if there is a tiny amount of asbestos in some wire insulation or insulating washers or especially in the insulation in some heat anticipator resistors.
  • Jamie Hall
    Jamie Hall Member Posts: 22,213
    But not enough to worry about, unless you are an absolute fanatic.

    The liquid in the thermometer will be alcohol.

    The active element is a bimetal.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    EBEBRATT-Ed Member Posts: 14,593
    probably a series 10 three wire stat
  • unclejohn
    unclejohn Member Posts: 1,833
    Snap action switch