How to measure the efficiency of your HVAC system? Here is how you can, Use the CFM Per Watt Calculator that will help you do this by calculating the airflow efficiency. Just enter the CFM (Cubic Feet per Minute) and Watts into the calculator, you can find the CFM per Watt value.
CFM Per Watt Calculator
Please enter the CFM per watt (Cubic Feet per Minute per Watt). This represents the airflow efficiency.
Please enter the CFM (Cubic Feet per Minute). This is the airflow rate in your system.
Power consumption in Watts.