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LENNOX GCS16 Furnace

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Overview of the GCS16

The LENNOX GCS16 is a natural gas-burning warm air furnace with an efficiency that ranges from 78.2 - 81% AFUE.

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LENNOX GCS16 Model Numbers

The GCS16 is available in different models which vary in efficiency and capacity.

Model Number AFUE BTUs per Hour
GCS16-060-120* 80 120,000
GCS16-1353-270* 0 270,000
GCS16-1603-270* 0 270,000
GCS16-413-100* 81 100,000
GCS16-513-125* 78.5 125,000
GCS16-653-125* 78.5 125,000
GCS16-953-200* 78.2 200,000
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