One ton of cooling typically requires 400 Cubic Feet per Minute (CFM) of airflow.

The material you choose impacts durability, noise, and price. Extremely durable, easy to clean, best airflow. Most expensive, requires professional skill to install. Flexible (Flex) Cheapest, easy to snake through tight spots.

Ductwork is a major investment. Total replacement for a standard home usually ranges from . Material Costs (Per Linear Foot) Insulated Flex: $1.50 – $7 Aluminum: $2.20 – $16 Galvanized Steel: $4.25 – $16 Fiberglass: $5.00 – $15 Installation Factors