efficiency of +20 year old Weil-Mclain oil boiler P366(HE)?

Discussion in 'Boiler Forum' started by hillpc, Sep 23, 2009.

  1. hillpc

    hillpc New Member

    Messages:
    5
    Location:
    south jersey
    The boiler with Beckett AF burner was here when I moved in. I assume
    the HE stands for high efficiency, but what was that 20 years ago? I
    could keep this boiler going for a long time, but wanted to check if
    it's worth it to replace with new. The Weil-McLain website has a
    calculator but doesn't have the info I need. It shows a 78% default
    efficiency; going from this to 86% or so saves me a little over $200/
    year (at $2.40/gallon). Seems like that'll take quite a while to
    recoup at a boiler equipment only cost of over 2 grand.
  2. flamefix

    flamefix New Member

    Messages:
    71
    Location:
    Exeter, England
    A flue gas analyser with the oil flow rates set should give you some idea of the efficiency. A modern condensing oil boiler will give you 95-7% efficiency.
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