Forced Air Furnace Diagram

A concise illustrated explanation of how upflow downflow and horizontal forced air furnaces work.

Forced air furnace diagram.

Forced air systems use a furnace or heat pump to heat the air and then disperse it through the house via ductwork and in room vents. Single stage models are like a bicycle with one gear. Natural gas or propane is ignited in the burner. A porous device for removing impurities or solid particles from the air that passes through it.

Central forced air heating systems are by far the most popular method of heating homes in north america no doubt because they can deliver heated air from a. Think of heating stages as gears on a bicycle or a car. A duct carrying air from a conditioned space to the mixing air duct or plenum unit. The flames heat up a metal heat exchanger and exhaust out of the flue.

Gas furnace diagram one of the benefits of a forced air system is that it can receive a whole house air conditioning unit a humidifier and an electronic air filter all of which can take advantage of the furnace s air handler and ducts for delivery of conditioned air to rooms. Once the temperature is set at the thermostat cold air from the home is pulled into the system where it passes through the air filter removing allergens like pollen and dust. Today s forced air furnaces are available in single stage two stage or multi stage models. Gas forced air furnace equipment.

Return air duct from rooms. A mechanical device that creates a current of air. A forced air furnace heats your home through a heating cycle that looks like this. It s great on a flat stretch of road but takes a lot more energy to go up a steep hill.