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Balancing Steam Systems clarification

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David Nadle
David Nadle Member Posts: 624
of "Balancing Steam Systems." In the table "How Much Air Is In A Radiator?" the number for Cast-iron radiant (5" deep) is 0.08 CF/ft^2. This is much higher than all the other radiator types. Am I correct in assuming it should be 0.008?

While we're at it, does anyone have any info on the Dole #90 main vent?
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