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vacuum steam vents

DanHolohan Member, Moderator, Administrator Posts: 16,487
makes their #76.
Retired and loving it.


  • David King
    David King Member Posts: 1
    Moline vapor vacuum system

    I have a house where there is a Moline system with a condensinmg loop in the basement. The original vacuum main vents are missing and were replaced with standard main vents. Does anyone know where to get vacuum main vents?
  • Jamie Hall
    Jamie Hall Member Posts: 22,877

    you may not need a vacuum vent -- they were really needed for old coal-fired units, and aren't so necessary (if at all!) on oil/gas. You do have Dan's book, don't you?
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    BRIANJ Member Posts: 118
    Vacum Vents

    Hoffman does not recommend use of the #76 vent with newer furnaces. If you're using coal it's OK. Contact Hoffman for more information.
This discussion has been closed.