Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Old Dominion Boiler radiator furnace

IanAbbie Member Posts: 2

Old Bungalo steam heater.
Gas furnace still working. In Canada
anyone know year or manual?


    JUGHNE Member Posts: 10,792
    Pretty sweet! I bet it likes gas.

    Not steam, the thermometer and pipe mounted control indicate a hot water boiler.
    Looks to be gravity flow with no pump.

    Is there a pressure relief valve somewhere?
    Very important item.
  • IanAbbie
    IanAbbie Member Posts: 2
     ice or
  • bburd
    bburd Member Posts: 683
    edited October 2021
    That valve between the pressure relief valve and the rest of the piping needs to be removed. It’s not allowed by code. If closed, it will isolate the relief valve from the system pressure and can turn the system into a bomb!

    Also the PRV needs a discharge pipe to within 6 inches of the floor, with no valve and no threads on the end of the pipe. Some jurisdictions require that this pipe not be iron or steel, and it must be rated for the maximum expected discharge temperature.

    EBEBRATT-Ed Member Posts: 13,813
    And with the inspection tags hanging in the background. Maybe the valve was added after inspection.


    You should remove that valve right away, at least make sure that valve is wide open and remove the red handle and hack saw the stem off above the packing nut.

    Hopefully the relief valve is oversized looks like a 3/4" valve on a 1/2" tapping.
  • Steamhead
    Steamhead Member Posts: 16,263
    That boiler is about 40% efficient. Time to replace it.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • Larry Weingarten
    Larry Weingarten Member Posts: 3,078
    Hi, The relief valve supply is bushed down on both ends. You might remove both bushings and gate valve and just use a larger pipe directly into the relief, then pipe the discharge down to a safe place. Until the supply to the valve is made bigger, it cannot function at its rated capacity.

    Yours, Larry