CentricAir WHF 4.0 3860 Real CFM

CentricAir 4.0 energy-efficient whole house fan delivers a powerful 3921 CFM (CA Title 24 Airflow). It requires about 5.0 sqft of net free attic ventilation and costs about $0.12 per hour to operate. It uses 623 WATTS of power and is designed to cool 2-story homes up to 4400 sqft and 1-story homes up to 3000 sqft. This 3921…