HRV/ERV E-Learning

HRV System - Air FlowZehnder Heat Recovery Ventilation System

The online course and eBooks will guide you in selecting an HRV/ERV and explain how the efficiency of the HRV unit and system components impact the energy usage, comfort and health of its occupants. In the last several decades, buildings have become progressively air tight due to energy efficiency and cost concerns. While air infiltration and ex-filtration rates have been significantly reduced, the need for an efficient ventilation system has become extremely important. Without proper ventilation, tight, energy-efficient construction risks mold, mildew and indoor air quality issues. A high performance heat recovery ventilation system ensures fresh, filtered air and a significant reduction of heating/cooling loads. If you have further questions not addressed in the online course and eBooks, please email

Online Course

Online Course “Heat Recovery Ventilation: Why Efficiency Matters”– This AIA/GBCI approved course provides an overview of different types of mechanical ventilation systems and discusses why heat recovery ventilation (HRV) and energy recovery ventilation (ERV) systems are characterized by a high level of energy efficiency and as an effective means for improving comfort and indoor air quality in energy-efficient and high-performance construction.


eBook “Selecting an HRV/ERV System”– Learn about the different HRV/ERV system components, sizing and efficiency testing options.

eBook “Comparing Heat Exchangers”– Learn about the principle of heat exchange and the different types of heat exchangers available. The efficiency of a heat exchanger greatly impacts the comfort of the inhabitants.

Zehnder provides design work, installation support and commissions its system. We have engineers and technical support that will look at your plans and design a heat recovery ventilation systems with proper air distribution components.  After the installation, we commission (Quality Assurance Process) our systems to make sure that the installation was done correctly and will work as designed.

If you would like a complimentary system design and quote for a current project, click here