Archive for January, 2011

Basic Gas Furnace Operation

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Basic Gas Furnace Operation

The gas furnace is the simplest to operate and understand. Therefore, we will use it here to look at a typical heating system. This type of natural-gas furnace is used to heat millions of homes in the United States. Figure 2-1 is a simple circuit needed to control the furnace with a blower. Note the […]

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Hot-Air Furnaces

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Hot-air furnaces are self-contained and self-enclosed units. They are usually centrally located within a building or house. Their purpose is to make sure the temperature of the interior of the structure is maintained at a comfortable level throughout. The design of the furnace is determined by the type of fuel used to fire it. Cool […]

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