Furnace Diagrams

Learn more about the parts of furnace system using these hands-on furnace diagrams in best quality! In these 101 Diagramss, the parts of some types of furnace system are explained in pictures. The first one posted below is the air furnace diagram.

furnace diagram air
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A furnace is a device used for high-temperature heating. I is an equipment used to provide heat for a process or can serve as reactor which provides heats of reaction. Furnace designs vary as to its function, heating duty, type of fuel and method of introducing combustion air. The furnace diagram posted above is the forced-air, atmospheric burner style with a cast-iron or sectional steel heat exchanger. The heated air was moved by blowers which were belt driven and designed for a wide range of speeds. These furnaces were still big and bulky compared to modern furnaces, and had heavy-steel exteriors with bolt-on removable panels. Air furnace system is one which uses air as its heat transfer medium. These systems rely on ductwork, vents, and plenums as means of air distribution, separate from the actual heating and air conditioning systems. More types of furnaces are explained in the following parts diagrams.

furnace diagram detailed
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furnace diagram gas
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furnace diagram labeled
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A gas forced furnace goes into action when the thermostat tells it that the room temperature has dropped below a preset comfort level. The thermostat sends a low-voltage electrical signal to a relay in the furnace, which signals a valve to open and deliver natural gas to the burners and for the blower to turn on. The furnace’s pilot light or electronic ignition lights the burner inside the combustion chamber. This creates heat in the furnace’s heat exchanger, a metal chamber around which the moving air flows. Once warmed, the air is pushed into the hot-air plenum and then out to the rooms through duct work. The combustion gases created by burning fuel are vented through a flue in the roof or, with high-efficiency furnaces, through a wall.

furnace diagram part
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furnace diagram parts
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furnace diagram unlabeled
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All these pictures presented are printable furnace system diagram resources. We also provide the unlabeled version in the last picture. Learn more about the other educational diagrams by browsing through our categories or looking it up on the search column!