A range hood above 400 CFM does not create the same makeup-air requirement in every house or jurisdiction. Learn how exhaust capacity, combustion appliances, pressure balance, local code, and makeup-air design fit together before installation.
Range Hood Duct Size: Diameter, Length and Elbows Explained
A powerful range hood can still perform poorly when the duct behind it is too small, too restrictive, or badly routed. Learn how to verify diameter, material, elbows, route length, and outdoor termination before the installation becomes expensive to change.
How Many CFM Does a Range Hood Need? A Practical Sizing Guide
A bigger CFM number does not automatically make a better range hood. Learn how to size kitchen ventilation using hood width, placement, capture, ducting, noise, and makeup-air checks.



