The suction of range hood is small. I want to replace the impeller. If there is no impeller of the required size on the Internet, can I change it to a smaller impeller?
The suction force is small, so it is impossible to simply replace the impeller, because the impeller is driven by the motor, and the motor, the wind wheel and the volute form a fan. The suction of this fan is the whole suction, which requires the motor and impeller to match well. Simply replacing a component may not increase the suction, but sometimes it will affect the power and temperature rise of the whole fan, so be careful. If you have to change it, replace the whole fan. When the wind becomes a small wheel, the speed will be faster, but the suction may not be greater.