Use of glycol in hot water system

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    • #277948
      Avatar photoKevin W. Fishburn

        We have a 40 year old public library with a low pressure steam heating system. We are considering converting to a hot water system. Our heating design engineer says it is mandatory to include a glycol sytem at a cost of $4,000 to prevent freezing and protect the steam coil in the air handler unit. Is it really necessarry to include this system?

      • #297425
        Avatar photoPLUMBILL

          I would say you better protect it from freezing, you should also ask about other possible methods.

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