Fan efficacy and ERVs
what classification does a erv/hrv have if it doesn’t have a ECM motor
it is not exempt from the efficacy requirement. so, does it a bathroom utility roon fan efficacy
Panasonic whisper comfort erv uses an ac motor .
its fan efficacy is 40 cfm@ 0.1 esp/ 23 watts = 1.75 ?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part