What components are typically found in a gas appliance's combustion system?

The combustion system of a gas appliance is essential for the efficient and safe operation of the appliance. This system typically includes key components such as the burner, heat exchanger, and venting.

The burner is responsible for mixing fuel with air and igniting the mixture to produce a flame, which is what generates heat for the appliance. The heat exchanger then transfers this heat to the surrounding air or water without allowing combustion gases to enter the living space, ensuring safety and efficiency. Venting plays a crucial role in directing combustion byproducts, such as carbon monoxide and unburned gases, safely out of the home or building.

Together, these components ensure the appliance operates efficiently, safely, and complies with regulations regarding air quality and gas safety. Understanding these parts is vital for gas technicians to diagnose issues, perform maintenance, and ensure compliance with safety standards.