Heat from burning fuel warms the walls of the firebox section of the furnace in
History · High School · Wed Jan 13 2021
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When burning fuel in a furnace, the heat generated warms the walls of the firebox section. The firebox is the chamber where the combustion of fuel takes place. The primary purpose of the firebox is to contain the fire, and it is typically lined with refractory materials that can withstand high temperatures.
In a furnace, whether it's a home heating system, an industrial furnace, or a boiler, the heat generated from burning fuel is absorbed by the walls of the firebox. This heat transfer is crucial for the overall efficiency of the furnace. Once the walls are heated, they, in turn, transfer the heat to a fluid (such as air or water) that circulates through the furnace. This heated fluid is then distributed to provide warmth or to perform other functions, depending on the specific type and purpose of the furnace.