1 The difference between AC and EC motors is that one is an AC motor 120 volts 50 HZ and the other is a DC motor. AC power is converted to 24 volts through the power supply unit inside the motor to supply power to the motor. The advantage of DC motor is that it can be controlled by the control system to start and stop the fan and multi-speed, which saves electricity and is highly efficient. 2 Yes, it can be used to exhaust a porch bbq grill.
By vevor