Lennox GCS16 Furnace Overview
The LENNOX GCS16 is a natural gas-burning warm air furnace with an efficiency that ranges from 78.2 – 81% AFUE.
Furnace Filters for the Lennox GCS16
Air Flow Configuration | Cabinet Width | Filter Size(s) |
Downflow / Horizontal | 17.5″ | 16x25x1 |
Downflow / Horizontal | 21″ | 20x25x1 |
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