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Insulated return

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Bob_115
Bob_115 Member Posts: 50
in THE MAIN WALL

I have hydronic baseboard on a house that has a slab floor. The return lines are inside the metal covers. I insulated the returns with foam pipe insulation thinking it would prevent condensation in my old steel boiler. Was this a bad idea?

Comments

  • GGross
    GGross Member Posts: 1,901

    insulating the returns isnt bad, but its probably not going to effect the return water temp enough to change whether you boiler condenses. what was the reurn water temp before and after insulating measured at the boiler?

  • mattmia2
    mattmia2 Member Posts: 16,786

    i would be concerned that trying to cram insulation inside the baseboard covers would impede the airflow through the element.

    unless there is something very wrong with the system with baseboard on a cast iron boiler the return water temp should be well above flue gas condensing temps.

    GrallertGGross
  • ethicalpaul
    ethicalpaul Member Posts: 8,806

    If you really want to be safe, you should insulate the fins!

    NJ Steam Homeowner.
    See my sight glass boiler videos: https://bit.ly/3sZW1el

    GGross

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