I have 2 blower fans (normally used to vent engine compartments on boats of fumes before starting engine) installed as inline HVAC airflow boosters. I know, I know... for all the HVAC people out there they will notice right away that this is a poor method of trying to boost airflow. Needless to say, my options were limited at the time and this was the best available method to increase airflow from the furnace to colder areas of our AS.
I currently have a voltage regulator installed on each of these fans to allow for some control over the speed of each fan:
Unfortunately, they aren't rated to handle more than 3A and one of them has already failed due to the draw of the fan it's attached to. I am looking for a replacement.
I was wondering if anyone could recommend a voltage regulator or fan speed controller on Amazon.com that would service this purpose. Wondering if this one would suffice: