Boiler Room Air Supply | Johnston Boiler | Top Quality

Combustion Air = HP* x 8 CFM/HP = 2 Ventilation Air = HP* x 2 CFM/HP = 3 Total Air Required = HP* x 10 CFM/HP = *HP refers to the total maximum HP located in the room The above calculations are adequate for installations up to 1000 feet above sea level (fasl)

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