A Fan for All Year Round

COOLING

HVLS fans rotate slowly, at 25 to 125 rpm, powered by a motor of less than one horsepower.Then we wanted to maximize the performance by using as many blades as we could," said Boyd. The airfoil has an angle of attack- the degree it is tipped-of8 degrees, similar to that of a typical airplane wing.

WARMING

Although the HVLS fans were usually purchased and widely used during the summer, we believes that they will provide comfort in the winter as well. Unbalanced temperatures are not uncommon in the winter, and continual opening of the dock and door's allows cold air to spread quickly throughout the building, creating pockets of cold air.

 Much of the hot air from the heaters rises to the ceiling, where it is wasted. Stratification of temperatures can be costly to large plants in winter. The temperature difference between floor and ceiling can be as much as 15°F. This means that the ceiling would have to be heated to 85°F to maintain 70°F at floor level.