Why ERV units are not generally used for Residential purposes?

Why ERV units are not generally used for Residential purposes?

Energy Recovery Ventilation Units are popular in residential situations in the northern hemisphere climates where there are very cold (minus temperatures) for long periods of the year. In these conditions homes are very well insulated and sealed to prevent loss of heat and minimises fresh air entry.

In Australia, most houses, have large windows and doors and our indoor/outdoor lifestyle caters for the natural introduction of fresh air. Older homes are generally not well sealed, are less energy efficient and do allow some infiltration of fresh air into the home. As house designs continue to improve to minimise the escape of heat, we create an issue where no fresh air can continually enter the building.  This then calls for some mechanical ventilation and hence Energy Recovery will become a requirement.

Another rising market in the residential sector in multi storey apartments where the bathroom and kitchen exhaust air must be replaced with an incoming fresh air. In some circumstances a ERV can be an efficient solution, but because of the low air flow requirement, the pay back period is still high.

The perspective is completely different with commercial and community buildings where the Building regulations mandate fresh air, the requirement is for large volumes of fresh air and the added load this puts on air conditioning systems makes ERV a natural consideration.

Disclaimer: The data and information contained in Armcor Air Solution technical specification sheets are representative of expected performance. They are derived from aggregated specifications of the individual components used in the equipment and not from verified laboratory testing. This should only be used for evaluating your specific application and clients have the sole responsibility of satisfying themselves that the goods or services are suitable for any specific use.