Mike Lamb Posted July 12, 2017 Report Share Posted July 12, 2017 It is in the boiler room. Quote Link to comment Share on other sites More sharing options...
Les Posted July 12, 2017 Report Share Posted July 12, 2017 klixon disc Quote Link to comment Share on other sites More sharing options...
mjr6550 Posted July 18, 2017 Report Share Posted July 18, 2017 Heat detector. The ones I have seen were usually part of an old Honeywell system. Quote Link to comment Share on other sites More sharing options...
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