Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.

If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Need to contact us? Visit https://heatinghelp.com/contact-us/.

Can Main Vents Go Bad?

MissButtersMissButters Member Posts: 18
Hi. I have a one-pipe steam system with two mains off the boiler. In 2017, we put a Gorton #2 on the main that feeds a few rooms, including the family room. In late 2019, we put a Barnes and Jones Big Mouth Air Vent on the other main (which had no vent and had been capped off). The system was actually running great for a while. The family room was one of the warmest rooms in the house. However, recently, the family room and the small powder room (both on the same main), are now the coldest rooms and not heating fast at all. I even switched to a D air vent on the family room radiator, and it still seems to be taking a while to heat up. I believe my system is shutting off before it can completely heat since the room with the thermostat is on the other main. So, the room with the thermostat will reach the set temperature of 69, but the family room will still only be at 64. As I stated early, everything was great and the family room was one of the warmest rooms until the last few weeks. Is it possible the Gorton #2 vent has gone bad? Any other thoughts would be appreciated!!

TIA!

Comments

  • Jamie HallJamie Hall Member Posts: 12,724
    Any device can go bad. It seems unlikely that the Gorton would have, but it's possible. Was it ever overpressured? (over 3 psi). You might just see if it got stuck (I've seen that) -- sometimes just a sharp rap will open it again.
    Br. Jamie, osb

    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.

    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • SteamheadSteamhead Member Posts: 13,775
    This can also happen if the boiler develops a leak above the waterline. The steam will go up the chimney instead of to the radiators.
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
    https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc
    scottnjr
  • scottnjrscottnjr Member Posts: 60
    I agree with steamhead. Rule that out first. it's easy. Just fill the boiler way past the the top and water will pour out if its rotted.
  • MissButtersMissButters Member Posts: 18
    Thanks everyone. We will check for a leak. Also, in addition to the rooms not heating well, when I turn the thermostat up to get them to heat, we are having a lot of water hammer in the pipes in these rooms. Any thoughts on that as well as the rooms not heating? Again, this is a new problem within the last month or so.
  • Jamie HallJamie Hall Member Posts: 12,724
    New water hammer? And just in the rooms not heating? Some pipe may have shifted. They do, now and then. Check all the pipe hangers -- or anything else that might have changed.
    Br. Jamie, osb

    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.

    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
    MissButters
  • MissButtersMissButters Member Posts: 18
    edited April 30
    Hi everyone. So, apparently we had too much water in the boiler. WE drained some out and have the water level slightly above the halfway mark in the sight glass, and all the issues seem to be resolved! Thanks!
  • ethicalpaulethicalpaul Member Posts: 1,577
    I wouldn't call it "resolved" though...how did too much water get into the boiler?
    1 pipe Utica 112 in Cedar Grove, NJ, coal > oil > NG
    STEAM DOCTOR
Sign In or Register to comment.

Welcome

It looks like you're new here. If you want to get involved, click one of these buttons!