While conventional practice can lead to HVAC systems that are oversized by 25% or more, the proven very high efficiency approach to DOAS design allows for the downsizing of heating and cooling systems through ventilation heat recovery and by decoupling ventilation from the primary heating and cooling equipment. In fact, when combined with accurate thermal-load calculations, the very high efficiency DOAS approach can reduce HVAC system size by an average of 32%, as proven by recent real-world field studies. Read the full article >