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Boiler Aquastat

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brucewo1b
brucewo1b Member Posts: 638
in Thermostats and Controls
used to keep minimum temp in boiler for those with hot water coils, but can be used to protect boiler from low return water temps.

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  • [Deleted User]
    [Deleted User] Posts: 0
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    Boiler Aquastat

    What is the significance of the low setting of the bolier aquatstat. As I understand it the thermostat calls for heat...the high level (usually 180 turns the boiler off) but the boiler water would still circulate to bring the house up to temperature...what does the low number do (usually 160)

    Thanks.
  • carol_3
    carol_3 Member Posts: 397
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    And the difference between the high and low settings is called the "differential."
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