HRV stands for Heat Recovery Ventilation. It is a type of mechanical ventilation system that provides fresh air to a building while minimizing energy loss by recovering heat from the outgoing air.
HRV systems work by using two separate airstreams: one for the incoming fresh air and the other for the exhaust air. The two streams of air are passed through a heat exchanger, which allows the outgoing air to transfer some of its heat to the incoming air before it is released into the building. This process helps to reduce the amount of energy required to heat or cool the incoming air, resulting in lower energy bills and increased energy efficiency.
HRV systems are commonly used in residential and commercial buildings, especially in colder climates where buildings need to be heated for much of the year. They are also effective in reducing indoor air pollution and improving indoor air quality by increasing ventilation and removing stale air.