1. An ‘hvac’ system consists of a heater, evaporator coil, condensing unit and ductwork.
2. The equipment inside your home or office is usually called the ‘heater”. ‘furnace’ if you use gas to operate it or ‘air handler’ if you use electricity to operate it.
3. The evaporator coil is also in the home/office. The evaporator coil is installed next to the furnace for a horizontal application such as in the attic or on top for a vertical application such as in a closet.
4. Condensing unit – sometimes referred to as the ‘air conditioner’.