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CMR 4.00 (venting question)

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Al Letellier_9
Al Letellier_9 Posts: 929
in THE MAIN WALL
Here in Maine the total square inches (inside the flue liner) msut be equal to the TOTAL area of ALL flues connecting to it.....result: BIG CHIMNIES for multiple units

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Comments

  • The Kid_2
    The Kid_2 Posts: 19
    Venting multiple oil burners

    I have a formula for sizing multiple gas units to a single chimney. What do we use for sizing multiple oil burners using a single chimney. would it be the same?
  • Big Ed
    Big Ed Posts: 1,117
    BTU

    For oil you want to use the max btu input rating not what is is set to fire.
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