How Your Furnace Ignites: Understanding the Process
Ever wonder what happens when you call for heat from your thermostat? Your furnace goes through a series of carefully timed steps to safely warm your home:
Inducer Motor – draws a vacuum through the heat exchanger and pushes flue gases out.
Hot Surface Igniter – engages to light the gas.
Gas Valve Opens – ignition occurs, and flames spread across the burners.
Flame Sensor – confirms to the board that ignition is successful.
Your furnace also has multiple safety devices, like pressure switches, limit switches, and rollouts. All must work together to ensure proper ignition and safe operation.
Prime Genius Heating and Air helps keep your furnace running safely and efficiently.
