ESSENCE ®
WINTER ENERGY SAVINGS AND DESTRATIFICATION
“THE ESSENCE FANS WERE A CLEAR CHOICE IN THIS TALL SPACE. THEY DECREASED TEMPERATURE DIFFERENCES IN THE LIBRARY BY 72 PERCENT, AND THE HVAC SYSTEM RAN 16 PERCENT LESS WHEN THE FANS WERE ON.”
What Happens In The Winter? In the winter, heat from heating equipment and internal loads rises. This hot air can get trapped at the ceiling, leading to huge temperature differences across the building envelope, significant heat loss, and massive heating bills. How Does Destratification Work? Overhead fans aren’t just for cooling. Big Ass fans are designed to be able to operate very slowly in the forward direction, so they are able to thoroughly mix the indoor air without creating a draft. This mixing delivers uniform temperatures throughout the space, keeps heated air at the occupied level, reduces the required run-time of heating equipment, and ultimately results in up to 30 percent savings on winter heating bills.
ERIC P. STEVE AIA, LEED BD+C Ross Tarrant Architects for
Cassidy Elementary Lexington, Kentucky
Other Destratification Applications The dynamics and thermal properties of large warehouses can pose difficult challenges when you have racks and racks stacked with temperature-sensitive products. How do you keep products both on the top and bottom shelf within temperature specifications? The answer is Big Ass fans. By utilizing fans to mix the air in the storage areas, temperatures are more uniform top to bottom, improving product stability, and reducing the risk of spoilage.
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Winter heating, with and without Big Ass fans
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POWERFOIL ® D
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Elapsed Test Time (Hours)
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