Stack size shall be in accordance with the manufacturer’s recommendations. Stacks are the forced-air kind and
completely self-supporting and unattached to neighboring structures. As a minimum, stack heights shall minimize
downwash of stack emissions due to aerodynamic influences from neighboring structures and be calculated according
with DoD 4715.05-G, Overseas Environmental Baseline Guidance Document. Stacks shall be provided with
corrosion-resistant steel weather caps.”
A control box making sure that the whole cycle of combustion.