How Hot Surface Ignitors Work: An Overview


 Hot surface ignitors are a common component in many HVAC systems. They are used to ignite the fuel in a furnace or boiler, and they work by using an electric current to heat up a silicon carbide or silicon nitride element until it glows red hot. This, in turn, ignites the fuel and creates a flame that heats the air that is then blown through the HVAC system and into your home.

Hot surface ignitors are more efficient and durable than their older counterparts, such as standing pilot lights. They can also be more cost-effective over time, as they use less energy to operate and require less maintenance.

To understand how hot surface ignitors work, it is helpful to break down the process into several steps:

  1. Call for heat: When you adjust your thermostat to raise the temperature in your home, it sends a signal to your HVAC system to start heating.
  2. Inducer fan: The inducer fan turns on and draws air through the combustion chamber, which creates negative pressure.
  3. Pressure switch: The negative pressure causes the pressure switch to close, indicating that it is safe to continue with the heating process.
  4. Hot surface ignitor: The hot surface ignitor is activated and begins to heat up. The electric current running through the ignitor heats up the silicon carbide or silicon nitride element until it reaches a temperature of around 1,800 degrees Fahrenheit.
  5. Fuel: Once the hot surface ignitor is hot enough, the gas valve opens, and the fuel flows into the combustion chamber.
  6. Ignition: As the fuel flows into the combustion chamber, it comes into contact with the red-hot surface of the ignitor, which ignites the fuel and creates a flame.
  7. Heat exchanger: The flame heats up the heat exchanger, which is a metal component that transfers heat to the air that is blown through your HVAC system.
  8. Air blower: The air blower turns on and blows the heated air through the ducts in your home, raising the temperature to the desired level.

Hot surface ignitors are a critical component in the heating process for many HVAC systems. If your hot surface ignitor fails to work correctly, your furnace or boiler will not be able to heat your home efficiently, and you may experience a lack of heat altogether. If you suspect that your hot surface ignitor is not working correctly, it is essential to contact a licensed HVAC technician to diagnose and repair the issue.

When it comes to hot surface ignitors and other HVAC maintenance San Gabriel Valley, CA, Pioneer Heating and Air is the leading company in the area. Pioneer Heating and Air has been providing top-notch HVAC services to customers in San Gabriel Valley for many years, and they have built a reputation for excellence and reliability.

Pioneer Heating and Air offers a range of HVAC services, including hot surface ignitor replacement and repair, furnace and boiler installation and repair, air conditioning installation and repair, and duct cleaning. They are committed to providing their customers with the highest quality of service and workmanship, and they offer 24/7 emergency services to ensure that their customers are never left without heat or air conditioning.

In addition to their exceptional HVAC services, Pioneer Heating and Air is also known for their competitive pricing and commitment to customer satisfaction. They offer free estimates for their services, and they will work with you to find the best solutions for your HVAC needs that fit within your budget.

Overall, if you need HVAC services in San Gabriel Valley, CA, Pioneer Heating and Air is the company to call. Their expert technicians, competitive pricing, and commitment to customer satisfaction make them the best choice for all of your heating and cooling needs.

Location: 225 S Lake Ave STE 300, Pasadena, CA 91101, USA

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