The challenge of prioritizing IAQ and using high ventilation rates is to cost effectively treat the fresh outdoor air for temperature and humidity. For the past fifteen years, Drury Southwest has utilized rotary energy recovery wheels manufactured by Airxchange, Inc. in new hotel constructions and HVAC system renovations of older buildings. Using an energy recovery wheel to recycle up to 80 percent of the energy in room exhaust air provides “free” conditioning of the fresh outdoor air.

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