Energy recovery ventilators (ERVs) are designed to improve HVAC system performance by taking the energy from exhausted building air and using it to precondition incoming outdoor ventilation air. This ...
LENEXA, Kan. — Popular in Asia for three decades, variable refrigerant flow (VRF) technology has been gaining ground in the U.S. for about the last five years, driven in part by the growing need for ...
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