Cubic feet per minute (CFM) measures the volume of air that flows through a space in a minute. In HVAC, CFM airflow is important. It helps determine the correct size and capacity for your air conditioner, heat pump, and furnace.
Your HVAC system heats, cools, and moves air - that’s what the V in HVAC is all about - ventilation. Having either too much or too little airflow can affect your comfort and also potentially harm your ductwork and HVAC system components.
Good airflow is important for your HVAC system to function properly. It helps keep the air in your home clean and at a consistent temperature. The right CFM can improve indoor air quality (IAQ) as well as comfort.
The correct answer will depend on the size of your home. Larger homes will have a larger cubic foot per minute air flow rate need. A typical central AC unit or heat pump can produce an average of 400 CFM per ton of air conditioning capacity.
So, as an example, a 1,200 CFM requirement would mean you need a 3-ton HVAC system.
Work with your local American Standard dealer to ensure your home gets the airflow it needs to maintain healthy indoor air quality. To maintain proper airflow, you’ll want to schedule regular HVAC maintenance as well.
By Anne Fonda, Content Writer
Expert review by Jennie Bergman, Senior Product Manager, Indoor Air Quality
HVAC capacity is the output or production capability of a piece of heating or cooling equipment. Central air conditioning capacity and heating capacity are measured in tons or BTUs.
Discover what ton means in HVAC for your central AC unit, and why it matters. Depend on American Standard for your cooling needs.
Connect with our Customer Care team about your products, warranties, and dealer concerns.
Available Monday – Friday from 7am to 5pm CST
A phone
Dealers can answer questions, help you find the right products for your home, and repair your system.