A heat recovery ventilator (HRV) recover heat from exhausted air and moves it to the new fresh air. HRVs help to create a healthy indoor environment for single and multi-family homes. You can significantly reduce energy consumption through the process of fresh air and outgoing stale air. This is very important especially during the winter months when opening windows can lead to heat loss.
A heat recovery ventilator works by using the basics of heat transfer. HRV systems use one air stream for stale air and one stream for fresh air. When the air passes through these streams, transfer of heat happens. When stagnant indoor air is pushed outdoors, the heat from the air is transferred to the system. While this is happening, fresh air is pushed through the other side of the ventilator and is heated or cooled depending on the season.