Gas and oil furnaces burn fuel to provide heat for homes, and that presents a basic problem. Every combustion process produces noxious gases. How do you keep those gases from circulating throughout ...

Although the combustion analyzer doesn't measure them, proper ventilation/infiltration air, sufficient combustion air, and a safe heat exchanger are critical to ...

The main job of a furnace filter is to keep big stuff from getting in to the furnace heat exchanger or the air conditioner air coil and clogging things up with dust, pet hair, Barbie doll heads, and ...