GREENLAND, N.H. — Zehnder America announced it is now locally sourcing in the United States both its new ComfoFlex ducting and register boxes as part of its comprehensive approach to providing a heat recovery ventilation (HRV) or energy recovery ventilation (ERV) system with properly matched air distribution components. The company said, when a HRV or ERV system is designed with properly matched components, it will be quiet and often provide a smoother installation.

According to David Chouvelon, vice president - Zehnder America, and head of the Comfosystems business unit, “As we are developing our Comfosystems activity in North America, we are now in a position to implement the first step toward our local sourcing initiative using American manufacturing for our new ComfoFlex ducting and register boxes.” Zehnder said its approach to design, installation, and commissioning support has led to significantly increased business over the last few years.

The company said much evidence points to a range of common issues in purchasing just a HRV or ERV unit without specified air distribution components. When unspecified ducting and air distribution components are pieced together, it’s not uncommon for the efficiency of a HRV or ERV to go down significantly due to improper sizing or poor installation. This is the reason Zehnder recommends having a complete system designed and then, after the system is installed, having it commissioned to ensure the system is working properly.

Zehnder America is a division of the Zehnder Group, which specializes in advanced heating, cooling, and ventilation solutions. For more information, visit

Publication date: 10/6/2014

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