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How do I locate my Main Valve in a Steam System?

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coolfx35
coolfx35 Member Posts: 77
in Gas Heating
I looked everywhere but cannot locate my Main Valve? could they be hidden inside a wall? I have a finished basement.

Thanks.

https://www.youtube.com/watch?v=xb2Q21KvV0Q

Comments

  • KC_Jones
    KC_Jones Member Posts: 5,916
    There may not be a main vent, or someone took it out. And yes it's quite possibly someone did you the disservice of burying it inside a finished wall, in which case it's time to go hunting.
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15

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