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Ventilation is one of the most important aspects of sustainable mechanical design. It is a prerequisite of a healthy and productive indoor environment. Ventilation is integral to a durable, low maintenance structure. Through the use of Energy Recovery Ventilation (ERV) the size of conventional heating and cooling systems can be controlled at design conditions and will often be one of the largest contributors to operational energy cost reductions available to the engineer.

Today, while it is widely understood that ERVs allow in ample fresh air in an energy efficient manner, there are a number of other important features that help define a good ventilation system. ERVs contain both exhaust and make-up air handling systems in one package. These two air flows can be set up to provide pressure balancing for the building, to create internal building pressurization zones, or overall building pressurization.

ERVs are packaged air handlers and can be located remotely from occupants. Sound generated by the units can be attenuated by sound barriers and ductwork contributing to quiet occupied spaces. ERVs, as mechanical ventilation, can be automatically controlled using scheduled occupancy or demand (CO2) control avoiding wasteful over-ventilation.

ERVs moderate extremes of both temperature and humidity contributing to a lower average indoor humidity level. Finally, ERVs provide ventilation without direct outdoor penetrations enhancing building security, providing a cleaner indoor environment and significantly attenuating exterior sound levels.

Attributes of a Good ERV
  • Durable and structurally stable
  • Positive airstream separation
  • Is not a filter
  • Does not support biological growth
  • Will not burn
  • Low pressure drop
  • High heat transfer
  • High humidity transfer
  • Readily available and competitively priced

Today's good design practices must be energy efficient and sustainable. A wide selection of quality RenewAire ERV products are available to meet any projects ventilation requirements.