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.
If our community has helped you, please consider making a contribution to support this website. Thanks!

Venting problem

Options
Snowmelt
Snowmelt Member Posts: 1,457
in THE MAIN WALL
Came across a 400,000 btu steam boiler that is vented on side of building, roughly 10 feet in building. Then goes out side of building . Strait up 20 feet. It’s all 10 inch venting….. it’s getting condensation, I know it’s a long shot but anyway I can install a condensation tee on the vertical b vent outside or is that illegal?

Comments

  • hot_rod
    hot_rod Member Posts: 26,579
    Standard B vent outside? If so it is condensing because it is too cold, that condensate  eat through the inner tube of the vent.  Unless it is stainless it cannot handle condensation

    Is it sized properly?
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Snowmelt
    Snowmelt Member Posts: 1,457
    I’m going there one day during the week …….. that’s the best I can do
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 19,562
    you can't put a drain outside with a trap it will freeze. B vent can be bought with a stainless or aluminum liner.

    I would check the stack temp make sure the boiler is firing up to rate. Maybe insulating the 10' inside would help especially if it is in a cold area
    pcolburn2

Categories