Why standards matter
Heat-recovery ventilation is increasingly governed by standards that define how performance is measured and what minimum efficiency products must meet. For buyers and specifiers, knowing the key references helps avoid units that look efficient on paper but fail in the field, and it smooths market access for exported equipment.
Key test methods
EN 308 is the European test method for air-to-air heat recovery in ventilation, defining how effectiveness is measured under specified conditions. Eurovent certification builds on such methods to give buyers an independent performance label. In North America, AHRI and ASHRAE references serve a similar role, while China's GB standards cover domestic product requirements and energy-efficiency grading.
Comparable numbers only
Effectiveness figures are only comparable when measured the same way. A core rated by one method may not match another, so quotations should state the test standard used. The EU Ecodesign framework, updated for 2026, raises the minimum seasonal efficiency for heat-recovery ventilation units placed on the European market, pushing products toward verified, high-effectiveness solutions with documented performance.
Compliance is paperwork too
For exporters, compliance is as much about paperwork as hardware. Buyers increasingly want third-party test reports, certification listings, and clear submittal packages. This rewards suppliers with in-house thermal testing and quality systems, and it raises the bar for shops that cannot show verified performance. When specifying, request test-based effectiveness at both design and part-load conditions, because real savings depend on off-design behavior, not a single peak value.
Explore more
- EU Ecodesign 2026: what it means for heat-recovery ventilation
- ERV vs HRV plate cores for Passive House and NZEB
- China Market Insights
Key takeaway
For export especially, build the standard and test method into the product specification from day one rather than retrofitting it after a buyer asks. Early compliance is cheaper than a late redesign, and it keeps the door open to markets with strict efficiency rules.