Current Canadian projects indicate energy recovery ventilators (ERVs) are not a fad, but the wave of the future. One project putting this type of HVAC technology on the ‘sustainability map’ is the Montréal-based Centre hospitalier de l’Université de Montréal (CHUM). CHUM’s 185,810-m2 (2-million-sf) expansion (pictured above) makes it one of the largest hospitals in North America.