High-Velocity vs. Traditional Ductwork: Which Fits Your Home?

Traditional systems use trunks and branch lines with 6" to 14" round or rectangular duct. They're quiet, well-understood, and the right answer for most homes with adequate ceiling or floor space.

High-velocity systems use 2" to 3" flexible tubing that snakes through walls and floors. They're ideal for older homes — brownstones, antique colonials — that don't have space for conventional duct.

If you have an attic, basement, or open floor structure, traditional ductwork is almost always more comfortable, quieter, and cheaper. High-velocity is the right answer when traditional simply doesn't fit.