Where is the best recommended location to install HRVs and ERVs?

Installing Heat Recovery Ventilators (HRVs) and Energy Recovery Ventilators (ERVs) in conditioned spaces is the best recommended approach. Conditionally, these spaces are areas where heating and cooling systems maintain a comfortable environment for occupants.

By placing HRVs and ERVs in conditioned spaces, you ensure that the ventilated air being exchanged is at a similar temperature and pressure to the air within the living areas. This location maximizes the efficiency of the units, as they can effectively recover heat or energy from incoming and outgoing air. It also protects the units from extremes of temperature and humidity, which can lead to reduced performance and potential damage.

Installing these systems in unconditioned spaces or attics may expose them to extreme temperatures, impacting their efficiency and operation. Additionally, positioning them near combustion appliances poses safety risks, as these areas can have higher carbon monoxide and other byproducts of combustion, compromising indoor air quality. Hence, maintaining them in a conditioned area promotes better air quality and system performance.