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Quick vents

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Ben123
Ben123 Member Posts: 2
in Strictly Steam
Bi level house, Boiler in the basement bedrooms 2nd floor Two rooms on the second floor furthest from the boiler (steam heating one pipe system) Takes a long time to heat up. This has the result that rest of the rooms are warm but not these two rooms. I balanced all the these rooms with the correct valves. I have gordon D valves on the cold rooms and the rest have smaller valves. everything is fine temperature good elsewhere. The boiler pressure and cut off are fine.The radiators heat up but before the room even gets warm the thermostat hit the temperature and the boiler goes off. Raising the thermostat won't help as it will only make the other rooms too hot. The end off the line is closed off so adding an air eliminator at the end of the line means making holes. Also the radiators are pitched correctly and the water is clean no sludge. What can I do? Would an quick vent on the vertical steam pipe 1st floor help get steam to the 2nd floor?

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  • BobC
    BobC Member Posts: 5,478
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    main vents

    You really do need good venting on the steam main, that is the secret to even heating. If you were to use very slow vents on all the first floor radiators you should be able to get more steam to the two that don't heat well before the thermostat shuts the system down.



    That should work but it will burn a bit more fuel, get main vents installed.



    Bob
    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
  • Hap_Hazzard
    Hap_Hazzard Member Posts: 2,846
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    You're trying to vent your main without main vents.

    If you are talking about the Durst/USAV A883 Quick Vent, that is a main vent, but it's not very quick. You're better off with a Gorton 2 or a couple of Gorton 1s on an antler. The only question is where to put them. If you could post some pictures of the ends of your mains, where the returns are connected, we can probably suggest some options for installing some main vents.



    Currently the vents on those distant radiators are acting as main vents, because they need to not only vent the air from the radiators and their own supply piping but also most of the main. That's just too much air to try to push through a radiator vent, even if it is a Gorton D.
    Just another DIYer | King of Prussia, PA
    1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-24
  • Ben123
    Ben123 Member Posts: 2
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    quick vents

    Thank you for your advice
This discussion has been closed.

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