How Manometers Help HVACR Professionals Diagnose and Balance Furnace and A/C Systems

A manometer is an instrument used to measure and indicate pressure. There are two types of manometers, analog and digital. The most basic and simplest form of an analog is the U-Tube manometer, a glass or rubber tube bent in the shape of a “U” where numbers are listed and spaced every inch on each side, and water is placed in between the bends of the “U”.