SRE
Key efficiency factor
SRE measures the energy efficiency of central heat recovery ventilators (HRV).
HRVs with higher SRE are more energy efficient… more
SRE measures the energy efficiency of central heat recovery ventilators (HRV).
HRVs with higher SRE are more energy efficient.

SRE accounts for seasonal changes in outdoor temperature, fan energy and defrost cycles.
SRE is short for minimum sensible recovery efficiency at 32°F (0°C) less
Typical range of NEW central heat recovery ventilators (HRV):
62% SRE
HRV
78% SRE
HRV
92% SRE
HRV
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