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A New Look At Vacuum Heating

HeatingHelp Administrator Posts: 650
edited October 2022 in THE MAIN WALL
imageA New Look At Vacuum Heating

Igor converts a steam heating system to a vacuum system in this unique retrofit.

Read the full story here

Mad Dog_2


  • Long Beach Ed
    Long Beach Ed Member Posts: 1,213
    Wonder what kid of pump he's using? A dental pump?
    Mad Dog_2
  • fentonc
    fentonc Member Posts: 240
    Could you run like that but without the vacuum pump and replacing the water with an engineered fluid like 3M Novec 649? It normally has a boiling point of only 120F, so you could actually use it with an air to water heat pump even without drawing a vacuum.
    ttekushan_3Mad Dog_2
  • JakeCK
    JakeCK Member Posts: 1,401
    I think this needs repeating, everyday: "I knew too much about steam heating. My mind was made up, and that's always a dangerous thing."
    Mad Dog_2
  • Andrews_Tech
    Andrews_Tech Member Posts: 1

    Great article! Thank you!

  • FStephenMasek
    FStephenMasek Member Posts: 88

    Excellent article! How many buildings now have this system, and how has it performed since 2015?

    Author of Illustrated Practical Asbestos: For Consultants, Contractors, Property Managers & Regulators
  • jumper
    jumper Member Posts: 2,306

    Vacuum can improve performance even more dramatically in larger systems.

    Decades ago some Toronto buildings used an eductor to generate vacuum. There may have been problems with other aspects but circulation was excellent.

    Mad Dog_2
  • Mad Dog_2
    Mad Dog_2 Member Posts: 7,195
    I did an interesting heating consultation  about 7 yrs ago on a High Rise Apartment overlooking MANHATTAN.  I was shocked to find that this building was constructed only 3 yrs before, so about 2012ish...VACUUM STEAM system.  There were no major problems and we tweaked it back to Top Form...Mad Dog 🐕