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Merit
Series G43 Gas Furnace
®
Excellent efficiency can
save you hundreds of
dollars each year
ENERGY STAR
-qualified
®
Durable, high-quality
design for long-lasting
performance
Up-flow configuration
allows installation in
basements or closets
EFFICIENCY RATING
Up to 92.1% AFUE (Annual
Fuel Utilization Efficiency)
WARRANTY*
20-year limited warranty
on the heat exchanger.
5-year limited warranty
on all remaining
covered components.
*Applies to residential applications only.
See actual warranty certificate for details.
Merit
Series G43 Specifications
®
G43UF
24B-045
AFUE
90%
Dimensions HxWxD (in.)
40 x 17-1/2 x 28-1/2
HxWxD (mm)
1016 x 446 x 724
G43UF
48C-090
AFUE
92.1%
Dimensions HxWxD (in.)
40 x 21 x 28-1/2
HxWxD (mm)
1016 x 533 x 724
Note: Due to Lennox' ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.
THIS MODEL
90.0%-92.1%
© Lennox Industries Inc. 2004
(77M40) G43 8/05
Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.
PC42717
ECONOMICAL, HIGH-EFFICIENCY GAS HEATING
24B-070
90%
40 x 17-1/2 x 28-1/2
1016 x 446 x 724
48C-110
92.1%
40 x 21 x 28-1/2
1016 x 533 x 724
Many Lennox
home
®
comfort systems meet
ENERGY STAR
requirements
®
when used with appropriate
components. Ask your
dealer for details.
Duralok Plus
Made of patented ArmorTuf
aluminized steel that's life-tested to
2-1/2 times standard requirements
(ANSI Standard Z21.47) for long life
and durability.
Secondary Heat Exchanger –
Allows the furnace to reach high
efficiency levels by capturing
additional heat.
Integrated Control Board –
Provides full control of
furnace operation.
Durable Steel Cabinet –
Made to last, with a resilient and
attractive textured-paint finish.
G43
Up to 92.1% AFUE
36B-070
92.1%
40 x 17-1/2 x 28-1/2
1016 x 446 x 724
60C-110
92.1%
40 x 21 x 28-1/2
1016 x 533 x 724
Lennox is proud of the
fact that these products
have earned the Good
Housekeeping Seal.
Heat Exchanger –
®
™
36C-090
92.1%
40 x 21 x 28-1/2
1016 x 533 x 724
60D-135
92.1%
40 x 24-1/2 x 28-1/2
1016 x 622 x 724
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