Lennox Residential
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You will find brochures for most Lennox® products in our archived documents section. If you need information on a model that isn’t listed, you can request literature by mail.


Frequently Asked Questions

Frequently Asked Questions

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Lennox HVAC System Filters

Where is my air filter located?

Your air filter is located in either the blower compartment of your furnace, in an attached filter case, or in a wall-mounted return air grille. If you cannot locate the air filter, call your local Lennox Dealer for assistance.

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