Air duct work in Colleyville, TX

On the ground in Colleyville

Colleyville heats with gas to a degree the mid-cities just south of it do not come close to, and that has a consequence people rarely connect to their ductwork. Furnace air comes off the heat exchanger hot and dry, and in a January cold snap a house heated that way can sit at an indoor humidity low enough that fine dust stops settling and simply stays suspended. You see it in the light from a window, you feel it in your throat, and the natural conclusion is that the ducts are filthy. Sometimes they are. More often the reading is humidity, and the answer is added moisture or a longer, gentler heating cycle rather than a cleaning. The second Colleyville fact is the lots. This is an almost entirely detached, large-lot, heavily wooded city in the Cross Timbers post oak belt, and houses under a mature canopy carry a heavier organic load on the return side than open subdivisions do. That is a filter and return-sealing answer. And because the furnaces here are gas and usually in the attic, the cabinet and flue belong in every visit.