• Brand: AirScape
Vent fresh air through an entire house with AirScape's Sierra 3400 whole house fan. AirScape's flagship model features precision motorized damper doors with R-49 insulation. Big and powerful, yet ultra-quiet and efficient. The AirScape Sierra delivers stealthy whole house ventilation, pushing hot air out through existing attic vents, and drawing cool evening air in through open windows. The Sierra 3400 is AirScape's least powerful 24" fan generating up to 3400 CFM, for homes up to 2500 square feed. Package includes 3400 fan unit, powered AirLock damper box, 20" diameter accoustic ducting, Digital Touch Controller, 24.5" x 28.5" grille, CAT5 cabling and other installation accessories.