Sorry, the web browser you're using is not supported by this website.

Please use Google Chrome, Firefox, Safari, or another browser to access homex.com. Thank you.

Skip to main content

We use cookies to enhance your experience. For details on how we use cookies, collect data, & how to manage your consent please see our Cookie Policy & Privacy Policy.

How many CFM is a 100 000 BTU furnace?

We have a 100,000 Btu input draft furnace. Divide the rated furnace input by 10,000 Btu to find required airflow. A factor of 10 is the number of 100,000 divided by 10,000. 1300 cfm is equal to 10 times 130 cfm.

Let's Get It Fixed!

Our virtual experts can diagnose your issue (for free!) and resolve simple problems.

What Did You Think of This Article?

What Did You Think of This Article?

Shop Recommended ProductsShop HomeX Recommended Products