guides

Most rooms get their air from a floor register or a wall grille. Kitchens, bathrooms and older houses often cannot. Cabinets eat the floor along every wall, radiator-era rooms have...

Every forced air system is a loop. One set of openings pushes conditioned air into the rooms, another set pulls room air back to the furnace or air handler. The...

From the floor, every ceiling vent looks like the same white square. Three different machines hide behind that face. One pushes conditioned air into the room, one pulls room air...

Floor vent covers split into a few clear types. Steel and aluminum registers drop into the opening, wood registers match a hardwood floor, cast iron grates suit period homes, flush...

Metal vent covers come in two common metals: painted carbon steel and aluminum. Steel is stiffer and takes a wider range of finishes, while aluminum cannot rust, and that single...

Non-standard vent sizes are openings that do not match the common sizes on a reference chart, such as a 3" x 10" floor opening or a 4" x 30" return....