Understanding The Basic Components of a Furnace

Understanding the Basic Components of a Furnace Introduction: A furnace is the workhorse of your home's heating system, responsible for keeping you warm during the chilly months. It's typically located in a utility room or basement and appears as a large box with various tubes and coils attached. But what exactly goes on inside this box to generate warmth? Let's delve into the essential components of the furnace!

01 Evaporator Coil: Positioned on top of the furnace box, this crucial component plays a key role. When the furnace blower moves air across the coil, the air cools upon contact with the cold coil. Heat transfers from the warm air to the refrigerant.

02 Blower: The blower generates a flow of air that passes over the evaporator coil.

03 Filter: Acting as a porous device, the filter is replaceable or cleanable by the homeowner. It removes impurities and allergens from the outside air as it passes through.

04 Return Air Duct: This duct, present in various rooms, carries air from the room to the mixing air duct. It resembles a vent but does not release air into the room.

05 Air Handling Unit (AHU): The AHU, housed in the basement or utility room, contains the blower and heating or cooling units. It includes filter racks, chambers, sound attenuators, and dampers. The AHU connects to the ductwork running throughout the home.

06 Air Supply Duct: These are a network of ducts responsible for transporting conditioned air from the AHU to the rooms in your home.

All these components work seamlessly together to maintain a consistent temperature in your home.

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