What is an HRV or an ERV system?
An HRV is a heat recovery ventilator, and it continuously exhausts a small amount of air from the home and brings the same amount of fresh air into the
house. The heat from the outgoing air is used to warm the incoming air via the heat exchange core. These units run continuously and are controlled by a
de-humidistat. When the humidity in the air exceeds the setting on the de-humidistat, the HRV goes into high speed to quickly exhaust the humid air and
bring the humidity level down to the set point.
An ERV or an energy recovery ventilator works just like an HRV, but is better suited to running year round as it works well with air conditioning. The
HRV is better suited to northern climates where they do not need to run any cooling, while an ERV is better suited to climates where you would run heating
in the winter, but also have a need to run cooling in the summer.
Your Thomson Industries Home Comfort consultant will be happy to help you choose the right IAQ system to fit your home and budget.