What are the components of a gas furnace?

A gas furnace typically consists of several key components: the burner assembly, where gas is ignited; the heat exchanger, which transfers heat to the air; the blower motor, which circulates warm air throughout the home; and the control system, which regulates the furnace's operation. Other important components include the flue, which vents exhaust gases outside, and safety features like the limit switch and thermocouples to ensure safe operation. Together, these parts work to efficiently heat a space while maintaining safety and comfort.