Exhaust Stack and Fans
Exhaust stack components are fabricated
from galvanized steel: 20 gauge for under 30" diameter; 18 gauge
for 30" diameter and above. Available stack sizes are 12",
18", 24", 27", 30", 34", and 42"
diameters. Duct design meets Uniform Fire Code NFPA 91, latest edition.
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