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Secondary Combustion Air

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by Mtn Fire, Jan 31, 2013.

  1. Mtn Fire

    Mtn Fire New Member

    Dec 12, 2011
    New Mexico
    Hello all,

    On the home-built Garn style boilers do they us a second air source for the secondary combustion refractory chamber? Or does it get combustion air from the firebox?

    If so, what is the approximate size of "nozzle" per 100,000 btu?

    thanks in advance,

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