HRV - Heat Recovery Ventilation
Heat recovery ventilation (HRV), also known as mechanical ventilation heat recovery (MVHR), is an energy recovery ventilation system using equipment known as a heat recovery ventilator, heat exchanger, air exchanger, or air-to-air heat exchanger.
HRVs and ERVs can be stand-alone devices that operate independently, or they can be built-in or added to existing HVAC systems. For a small
building in which nearly every room has an exterior wall, then the HRV/ERV device can be small and provide ventilation for a single room. A larger building would require either many small units or a large central unit. The only requirements for the building are an air supply, either directly from an exterior wall or ducted to one, and an energy supply for air circulation, such as wind energy or electricity for fans and electronic control system. When used with 'central' HVAC systems, then the system would be of the 'forced-air' type.
- Exchanges heat between the fresh incoming air and stale exhaust air and helps manage moisture.
- Keep humidity outdoors in the summer and indoors in the winter, reducing the demand on your humidifier or dehumidifier.
- Balanced, energy-saving ventilation that provides outdoor air to the house while retaining up to 60% of the indoor heat, and rejecting about 40% of the moisture in the supply air, compared to mechanical ventilation products with no heat recovery
- Reduces the workload for your humidifier (dry seasons) or dehumidifier (humid seasons) by rejecting up to 40% of the moisture from the humid air leaving the home (dry seasons) or entering the home (humid seasons).