Loading... Please wait...

Blog - Heat exchanger

What is a draft inducer motor? How does it work? And how do I know if it is going to fail?

Posted by

What is a draft inducer motor? How does it work? And how do I know if it is going to fail?

Draft Inducer Motor

Understanding Your Furnace: The Role of a Draft Inducer Motor

With advancements in furnace technology, particularly in mid to high-efficiency models, the draft inducer motor has become an essential component. Its inception was driven by stricter government efficiency standards aimed at reducing energy consumption and improving safety.

What Is a Draft Inducer Motor?

At its core, the draft inducer motor is designed to ensure a safe and efficient furnace operation. It expels air and gases from the furnace chamber, pushing them through the heating vents. This critical process regulates the airflow and speed through the heat exchanger, optimizing the furnace's heating efficiency.

Where Is It Located?

You'll typically find the draft inducer motor near the furnace's gas burner compartment. This assembly consists of a fan or wheel driven by a motor, enclosed in a metal sleeve and connected to the power supply through an electric box. The specifications of draft inducer motors—like vent pipe diameter, voltage, and horsepower—vary, tailored to match the size of your furnace and the specific heating needs of your home.

Materials and Manufacturing

Durability is key in the construction of draft inducer motors. Manufacturers use a variety of materials, including metal and plastic, to withstand the demanding conditions of furnace operation. For environments prone to corrosion, polypropylene is the material of choice due to its resilience. In applications where temperatures exceed 220°F, fiberglass is preferred for its heat tolerance.

 Why buy the A163 motor over the Genuine Lennox 67K87 motor?

Why It Matters

The inducer motor plays a pivotal role when your furnace initiates a heating cycle. It purges any lingering gases in the heat exchanger, ensuring the air mixture is clean for the next ignition. This not only prevents clogging in the furnace burners but also significantly enhances the efficiency and safety of the heating system.

In Conclusion

The draft inducer motor is a testament to the evolution of furnace technology, emphasizing safety, efficiency, and environmental responsibility. If you're experiencing issues with your furnace or have concerns about your inducer motor, don't hesitate to reach out to a professional.

Need Professional Assistance?

If your furnace needs maintenance or you have questions about your draft inducer motor, our team of HVAC experts is here to help. Contact us today for a consultation and ensure your furnace is running efficiently and safely.

How does the limit switch on my furnace work

How Does the Limit Switch Work in a Furnace?So have you ever wondered, on those cold winter days, why the burners begin to roar like a lion, a few minutes before the blower motor comes on?Calm down and relax, you are not throwing your warm air out through the venting, it just means the limit switch [...]

Read More »


Shopping for quality and affordable HVAC Parts and filters has never been easier!

Shopping for quality and affordable HVAC Parts and filters has never been easier! We have categorized all of our products to make it easier for our customers to find the Parts and filters that they need.http://www.oemhvacpartscanada.ca/See below for the furnace air conditioning or heating part or parts you may need.A C Part, A/C Part, Accumulator, Air condition part, Air conditioner compressor, Air [...]

Read More »