Mike Lamb 56 Posted September 19, 2018 Report Share Posted September 19, 2018 What is this? The house - 1920 - used to have oil heat with tanks in the basement. There were pulleys from chains beneath this thing connected to nothing. Quote Link to post Share on other sites
Bill Kibbel 74 Posted September 19, 2018 Report Share Posted September 19, 2018 Before oil, it was coal. The chains were connected to the 2 dampers on a coal furnace/boiler. A thermostat signaled the motors for the chains to raise and lower the dampers to regulate the intensity of the fire. 1 Quote Link to post Share on other sites
Bill Kibbel 74 Posted September 19, 2018 Report Share Posted September 19, 2018 1 Quote Link to post Share on other sites
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