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80 year old house singe pipe & vacuum valve on main vent?

[Deleted User]
[Deleted User] Posts: 0
in THE MAIN WALL
Have an 80 year old house and went to replace the main vent air valve to find that it was a Hoffman 16 vacuum valve. It is a single pipe system with standard risers. Pretty straight forward. Is it OK to replace with a standard non-vacuum air vent?

The house was converted from coal to oil to gas, so I am thinking that maybe it just was never replaced?

Could it be there for other reasons?

Regards,
Mike

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  • [Deleted User]
    [Deleted User] Posts: 0
    80 year old house with Vacuum Valve on Main Vent?

    Have an 80 year old house and went to replace the main vent air valve to find that it was a Hoffman 16 vacuum valve. It is a single pipe system with standard risers. Pretty straight forward. Is it OK to replace with a standard non-vacuum air vent?

    The house was converted from coal to oil to gas, so I am thinking that maybe it just was never replaced?

    Could it be there for other reasons?

    Regards,
    Mike
  • [Deleted User]
    [Deleted User] Posts: 0
    80 year old house with Vacuum Valve on Main Vent?

    Have an 80 year old house and went to replace the main vent air valve to find that it was a Hoffman 16 vacuum valve. It is a single pipe system with standard risers. Pretty straight forward. Is it OK to replace with a standard non-vacuum air vent?

    The house was converted from coal to oil to gas, so I am thinking that maybe it just was never replaced?

    Could it be there for other reasons?

    Regards,
    Mike
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