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Removing main vents Q

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guzzinerd
guzzinerd Posts: 463
edited December 2025 in Strictly Steam

A few years ago you guys helped me tune my old neglected boiler (2-pipe steam) recommending gorton main vents, new traps, reducing running pressure and adding a vaportrol. It's been working well, cycling off at around 0.5 psi and there are 2 crossover traps in the boiler room.

My question is this: would there be any benefit to treating it like a real vapor system by blocking off the main vents or would you all just leave it alone?

Thanks and happy new year!

P.s. background: the mains had (spitting) vents on them already, just swapped them out for the gortons. The pressuretrol was set at 6psi and the traps were original from 1930.

Bryant 245-8, 430k btu, 2-pipe steam in a 1930s 6-unit 1-story apt building in the NM mountains. 26 radiators 3800sqf

Comments

  • Jamie Hall
    Jamie Hall Posts: 27,975

    Is it working well? Then leave it alone…

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    Big Ed_4
  • guzzinerd
    guzzinerd Posts: 463

    OK. Thanks

    Bryant 245-8, 430k btu, 2-pipe steam in a 1930s 6-unit 1-story apt building in the NM mountains. 26 radiators 3800sqf

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