Up to 6 units may be plugged into on a single 15 amp circuit and up to 9 on a 20 amp circuit. the axial fan is equipped with dual power outlets that will allow you to "daisy chain" up to 5 units. Do not "daisy chain" more than 5 units. The axial fan system has a 12 amp circuit breaker built in that will trip if more than 5 units are "daisy chained" from a single machine. The axial fan provides a standard duplex GFCI outlet for daisy-chaining multiple units together. These can be daisy chained up to 5 units Includes 2 convenience outlets Multiple position versatility, 2 speeds, precision pitch fans 1/4 hp motor 20 foot power cord Injection molded plastic Circuit breaker shutoff Height 24in. Depth 17.5in. Width 22.9in. Draws only 2.2amps Weight 37lbs. 3000CFM The fan is designed to operate in multiple positions for any type of drying. Face down Tilt Back Upright Tilt Forward Stack for Storage 12 amp resettable circuit breaker