An energy recovery ventilator, ERV, is a type of mechanical equipment that features a heat exchanger combined with a ventilation system for providing controlled ventilation into a building. This type of equipment was introduced as air-to-air heat exchangers in the colder regions of the US, Canada, Europe, and Scandinavia. In these areas tightly built modern houses were developing problems with indoor air quality and excessive humidity during the winter. The air-to-air heat exchanger brings in fresh air to handle these problems and preheats the air at the same time. These products are also now known and called heat recovery ventilators or HRV’s. ERV’s are available and paired with our complete distribution kits and can provide a higher level of controlled and targeted supply of fresh air with exhaust of stale air 24 seven.