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End of Steam Main Venting

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PoponPachaug
PoponPachaug Member Posts: 16
in THE MAIN WALL


I have recently been introduced to Steam Heating and had a need to replace a leaky boiler. Heating Help has proven a treasure trove of information and has enabled me to install the replacement boiler and re-work some piping to Main Line Vents where there were none.

Could a few of you "Pros" weigh in on the antler vent installed at the end of line?
The Main piping is 1 1/2 in dropping into a 3/4 in dry condensate return.
The 2 vents installed are Gorton #1.

You guys are the best and your professional opinions greatly appreciated.

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 23,283
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    Looks OK to me...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • PoponPachaug
    PoponPachaug Member Posts: 16
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    Just to clarify my question, I could not install the vent antler vertical due to piping to a radiator and joist interference, so I installed the riser to the vents at a 45 angle.
    Thanks again
  • Steamhead
    Steamhead Member Posts: 16,835
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    How long is that 1-1/2" main?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • PoponPachaug
    PoponPachaug Member Posts: 16
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    The 1 1/2" main is 14 ft and previous to that a 2" main of 23 ft
  • STEAM DOCTOR
    STEAM DOCTOR Member Posts: 1,967
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    Hard to tell from picture. I would think that the vent piping and the piping downstream, would fill with water. Which way is the main pitched?
  • Steamhead
    Steamhead Member Posts: 16,835
    edited October 2022
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    OK- the 2 Gorton #1 vents should be sufficient, as is the 45° angle. I've done the same thing.

    But the vents should be piped before the return connection. Your current setup has that capped "dead end" which will fill with water and possibly bang. The reducing coupling between the existing vent tee and the dry return connection creates another water pocket.

    Get a 1-1/2x3/4" tee (1-1/2" straight-through, 3/4" coming out the side) for your vents, then a 1-1/2" shoulder nipple and a 1-1/2"x3/4" reducing 90° elbow pointing down for the return line. You may need some 3/4" fittings to tie the return in also. That should do it!
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    STEAM DOCTOR
  • PoponPachaug
    PoponPachaug Member Posts: 16
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    Thank you gentlemen!!
    As always, your expert advice is greatly appreciated!!

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