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Thread: Direct Vent Boiler Into A Standard Flue?

  1. #1

    Default Direct Vent Boiler Into A Standard Flue?

    I have an oppurtunity to pick up a new Peerless Direct Vent oil fired boiler for a song. I would like to use it to replace my 20 year old Peerless boiler which has given me good service but is showing its age. My question is can I duct the exhaust into the standard 8 inch flue that my old boiler now uses ? Any replies will be appreciated, thanks.

  2. #2
    Master Plumber nhmaster's Avatar
    Join Date
    Jul 2008
    S. Maine


    Probably not. These units are designed to operate at a very specific draft.

  3. #3
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    San Diego


    You need to get the specific installation instructions for that unit, but unlikely that they would allow a direct vent into a vertical flue.


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