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G51 high-Efficiency Gas Furnace 92.1% AFUE
Lennox’ eLite® SerieS
Home Comfort Systems
g51
Single-stage, high-efficiency furnace
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INNOvATIvE FEATUREs FOR ENhANCED COMFORT AND EFFICIENCY
Insulated Blower Compartment –
Reduces sound for quieter operation.
Duralok Plus® heat Exchanger –
Made of high-quality, patented ArmorTuf™
aluminized steel. Life-tested to ꢀ-1/ꢀ times agency
requirements (ANSI standard Zꢀ1.47) for long
life and durability.
sureLight® Igniter –
Made of silicon nitride for reliable,
long-life performance
Robust stainless steel
secondary heat Exchanger –
Time-tested design allows the furnace to achieve
high efficiency levels by capturing additional heat.
sureLight Control Board –
Controls furnace operation to
ensure reliable, efficient performance.
Durable steel Cabinet –
Built to last and coated with high-quality, textured-
paint finish.
g51
92.1% afUe
Elite® series G51 specifications
G51
24B-045
36B-045
36B-070
36C-090
48C-090
60C-090
AFUE
92.1%
92.1%
92.1%
92.1%
92.1%
92.1%
Dimensions HxWxD (in.)
HxWxD (mm)
40 x 17-1/2 x 28-1/2
1016 x 446 x 724
40 x 17-1/2 x 28-1/2
1016 x 446 x 724
40 x 17-1/2 x 28-1/2
1016 x 446 x 724
40 x 17-1/2 x 28-1/2
1016 x 446 x 724
40 x 21 x 28-1/2
1016 x 533 x 724
40 x 21 x 28-1/2
1016 x 533 x 724
G51
48C-110
60C-110
60D-135
AFUE
92.1%
92.1%
92.1%
Dimensions HxWxD (in.)
HxWxD (mm)
40 x 21 x 28-1/2
1016 x 533 x 724
40 x 21 x 28-1/2
1016 x 533 x 724
40 x 24-1/2 x 28-1/2
1016 x 622 x 724
Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.
Many Lennox® home
Lennox is proud of
the fact that these
products have
earned the Good
Housekeeping Seal.
comfort systems meet
EnErGY STAr® requirements
when used with appropriate
components. Ask your
dealer for details.
THIS MODEL
92.1%
ꢁ
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Air conditioner or heat pump
Thermostat
Furnace or air handler
Filtration device
Germicidal light
Indoor coil
Humidifier
HEPA bypass filtration system
Energy recovery ventilator
10 Supply duct
11 Return duct
12 Dehumidifier system
13 Residential generator
CUsTOMIzE YOUR COMFORT
Lennox® heating, cooling and indoor air quality products are designed to
provide efficient, economical comfort—not only as individual units, but also
together as an integrated system. This combined network of products delivers
on every comfort count, from consistent temperatures and balanced humidity to improved indoor air quality. Lennox
also offers a line of residential generators, which provide safe, reliable standby power in the event of outages.
DEALERs YOU CAN COUNT ON
Choosing the right dealer for your home’s heating, cooling and air quality needs is every bit as important as choosing the
right brand. We think you’ll agree our independent dealers are a big reason you can count on quality customer service
whenever you call. Your Lennox dealer’s dedication to quality shows in his knowledge, training and expertise in designing
the right system for your home, installing it properly and keeping it running perfectly for many years to come.
© Lennox Industries Inc. 2007
(48M85) G51 09/08
PC55478
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