Homeowner Support Resources

Warranty Lookup & Registration

Find everything you need to register your product or check warranty coverage. We make it easy to get the support you deserve

Registration Warranty Lookup
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iComfort smart thermostat with touchscreen display showing temperature settings

Owner’s Manuals & Brochures

Quickly locate Lennox® product brochures and owner’s manuals with our easy search tool.

Browse Product Literature
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Model & Serial Number Lookup

Learn how to locate the model and serial numbers on your Lennox® heating and cooling systems. 

Cooling System Heating System
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HVAC Insights & Resources

From maintenance tips to troubleshooting, our blog offers helpful information for keeping your HVAC system in top shape.

Visit our Blog
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Replace Your Air Filter Today

Understand the importance of regular air filter replacement and find the perfect fit for your Lennox® system. 

Replace My Filter

Have a Question?

Don’t hesitate to ask! Whether it’s about installation, warranty, or product features, we’re here to provide the clarity you need. Our customer support team is just a message away, ready to help with any queries you have.

Get support from the best customer service team 24 hours a day, 7 days a week.

Email Us 1-800-9-LENNOX
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