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    Story of Chief Big Boiler and Cousin Little Pipe (5 Posts)

  • Clank Clank Clank Clank @ 7:41 PM
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    Story of Chief Big Boiler and Cousin Little Pipe

    Details of the system (and previous attempts at fixing things) can be found in the attached thread.

    http://www.heatinghelp.com/forum-thread/149174/Complete-System-Review-Two-pipe-System-plus-One-pipe-Counter-Flow-Extension

    That said, after performing all of the following:
    -capping the return lines which were piped incorrectly,
    -skimming the boiler,
    -installing main vents,
    -replacing & putting multiple vents on some of the radiators,
    -adjusting radiator pitch,
    -changing some supply valves,
    -setting the thermostat's Heat Rate Cycle to 1,
    -adding a vaporstat with a low pressure gauge, and (running between .5 - 1.5 for now)
    - adding insulation to the near-boiler piping

    I have the system to the point where the noise level doesn't startle the neighborhood too much anymore. That said, its not without sacrifices:
    - the kitchen radiator still clanks viciously. No effort was able to overcome the mis-sized (3/4") runout to it (... and possibly badly pitched as well). Good thing its furthest room from the bedrooms
    - I have to keep the supply valve shut for a bathroom radiator due to the same reason, adding to the oversized boiler issue i have to begin with. (55,410.14 needed vs. 145,000 that the Weil-Mclain EG-50 provides)
    - short cycling still occurs, especially during recovery mode since I keep it cold at night.

    While i try to find alternate solutions to the short cycling, in regard to the clanking, i read somewhere that, given the narrow size of the pipe, venting the radiator vvvvery slowly theoretically might help a bit. The give & take there is that is a radiator that is further away so if things were ideal, preference would be to vent it a bit quicker.

    any thoughts? Given the flaws with the system anything i do is essentially a patch/workaround until i'm prepared to break open the walls and re-pipe.

    thanks
  • BobC BobC @ 7:59 PM
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    slow might help

    I'd try the slow vents on the clankers, I think the maid o mist #6 is rated for 0.02CFM and you could probably slow it further by partially blocking the hole with a strand of wire. That might mean they don't heat like they should but maybe it will quiet them.

     Next I would stop using a setback and just crack a window in the room you want to stay cool at night. I don't think your saving enough money to matter unless the temperature is turned down for days.

    Bob
    Smith G8-3 with EZ Gas @76,700 BTU, Single pipe steam


    Vaporstat with a 12oz cut-out and 4oz cut-in


    3PSI gauge
    This post was edited by an admin on February 10, 2014 8:00 PM.
  • Clank Clank Clank Clank @ 8:16 PM
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    Setback

    Thank you for the comments. Looking at the setback is certainly a thought. I didn't know enough about the savings to commit to making the change yet. I just posted another thread on the topic. thank you again. I'll follow your advise on the vent ... and let you know.
  • BobC BobC @ 7:25 AM
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    ERROR

    In my post above I suggested trying a Maid O Mist #6 because of it's small removable orifice. The #6 is not slow it actually has a 0.15" orifice.

    I meant to tell you to use the Maid O mist #4 which does have the removable 0.028" orifice, the Hoffman 40 has a 0.04" orifice. I'm sorry if this led to any confusion.

    Bob 
    Smith G8-3 with EZ Gas @76,700 BTU, Single pipe steam


    Vaporstat with a 12oz cut-out and 4oz cut-in


    3PSI gauge
  • Banging

    Keeping your supply valves to some radiators closed can cause banging and spiting out of the vents.

    Thanks, Bob Gagnoni
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