This is the first in a series of articles intended to provide a working knowledge of residential heating-cooling duct systems; an understanding of the major issues concerning efficiency, comfort, ...

ARLINGTON, Va. — ACCA has announced the launch of its newest online certificate training program, Qtech: Duct Design Basics. Through Qtech, contractors can offer their employees on-demand training in ...

Q. This week: Is there any way to reline or replace metal heat ducts under a concrete slab floor without tearing up the floor? We had our ducts commercially cleaned five years ago, when we were having ...