Broan-Nutone CV400 400 Watt, 1.74Hp, 1 Stage, Disposable Bag Designed for smaller homes up to 2,200 square feet (204 m ²), this power unit features a 1-stage motor that delivers 400 air watts of power. A great solution for the budget minded consumer. Broan-Nutone CV400 400 Watt, 1.74Hp, 1 Stage, Disposable Bag Features: For homes 2,200 sq/ft. and less Compact footprint (30 Tall x 11 Diameter) great for closets and other locations where space is limited Convenient illuminated power switch located on Power Unit, turns system on and off Power Unit uses a 120 volt motor which operates on dedicated 15 amp circuit. 120V AC. Features overload protection and built-in low voltage switch controls Rugged steel housings with durable designer white polyester appliance finish Durable, dent-resistant 6 gallon polymeric debris bucket with easy on/off snap release (Model 391 filter bag required) Single intake port Mounting bracket provides fast, easy, secure wall-mounting UL Listed 2-Year Warranty.