Arctic Dual Hood for Heat Recovery Ventilation This project aims to develop a new consumer product for ventilation systems: The Arctic Dual Hood. Dual hoods are vents that combine the ventilation intake and exhaust into a single wall penetration; they are intended for Heat Recovery Ventilation and Energy Recovery Ventilation (HRV/ERV) systems. Dual hoods make…
Three-Stage HRV Evaluation In Alaska and Canada, the main defrost strategies for heat recovery ventilators (HRVs) involve recirculating return air across the heat exchanger core and back into the supply air for the house. In cold climates, this type of frost protection system can undermine ventilation standards. To overcome this issue, continuous ventilation systems such…
Energy Recovery Ventilators in Cold Climates Energy Recovery Ventilators (ERVs) exchange stale indoor air with fresh outdoor air, recovering heat and moisture from the exhaust air and transferring it to supply air. Heat Recovery Ventilators (HRVs), on the other hand, only recover heat from exhaust air and thus dry out the indoor air. In a cold dry…