Wisconsin Dells, WI

Case Study: Kalahari Resort

Thanks to the Big Ass Fans, we're moving warm air down from the ceiling and making the temperature more consistent while using less energy. When you can save $13,000 on a monthly bill, that's a big deal. It's Phenomenal. Bill Maurer, maintenance manager

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Powerfoil X Series


At the nation’s largest indoor water park, customer comfort is the No. 1 priority. But keeping the Kalahari Resort in the Wisconsin Dells feeling tropical can be tricky. The facility needs to stay at a swimsuit-friendly 82°F (28°C) – no small feat in a 125,000-sq-ft (11,612-sq-m) space with 52-ft (16-m) ceilings. Warm air got trapped at the ceiling, far from where visitors need it. In order to keep the facility comfortable down at floor level, Kalahari had to blast extra heat into the space, wasting energy and racking up massive utility bills.


Four 24-ft (7.3-m) Powerfoil® fans by Big Ass Fans® came to the rescue. The fans’ patented airfoils, inspired by airplane wings, recirculate the warm air that pools at ceiling level, sending it back down to the floor. The results? Less wasted heat and more even, comfortable temperatures. With the fans, the temperature difference between the ceiling and the floor areas dropped from almost 20°F (11°C) to less than 2°F (1°C).

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