Direct Vent Boiler Into A Standard Flue?

Discussion in 'HVAC Heating & Cooling' started by plunger76, Oct 5, 2008.

  1. plunger76

    plunger76 New Member

    Apr 15, 2008
    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. nhmaster

    nhmaster Master Plumber

    Jul 30, 2008
    Tech. Instructor
    S. Maine
    Probably not. These units are designed to operate at a very specific draft.
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  4. jimbo

    jimbo Plumber

    Aug 31, 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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