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Air-Therm Inc. of Montreal CANADA is the world leader in
natural ventilation design, engineering
and supply of Natural Ventilation systems for industrial process
buildings such as Steel Mills, Aluminium Smelters, Glass Plants and many other
applications. Air-Therm designs tulip shaped, low profile and
clam shell type
ventilators in continuous runs and modular sections and can also
design and supply the requisite inlet louvres as
well.
"Ventilation Rates of Smelter Buildings in Northern
Climates" ( Derneddes 2004 ) utilised buildings with Air-Therm
gravity ventilators to conduct their stdy.