Looking to install a 1600CFM gable mount attic fan with prewired thermostat. Specs are confusing because one sticker on the fan says 120V 60Hz 4.0A but then another sticker on the motor itself says 120V 60Hz 3.2A.
Either way, how do I determine if it's OK to simply splice into the receptacle box that is in the ceiling of the garage? (it only has the garage door opener plugged into it)
I know I can turn off the circuit breaker, undo the wires in the receptacle box and add the 12/2 wires that run to the fan's thermostat (like the picture above), then screw cap & tape the connections, button it back up, secure the wiring to the rafters, and turn the breaker back on. But how do I know if that's too much draw for that circuit?
Also, I'm still not sure about the legality of it. I'm confused about the need for a permit, or even having an electrician do the wiring entirely.
I'm essentially in Memphis, TN if that helps.
Any advice is appreciated. Thanks.