Lenoxx Electronics G43 User Manual
G43 Gas Furnace ◆ Up to 92.1% AFUE
LENNOX’ MERIT® SERIES
Home Comfort Systems
G43
Direct/Non-direct vent
gas furnace
Merit® Series G43 Gas Furnace
THIS MODEL
90.0%-92.1%
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.
Innovation never felt so good.
5-year limited warranty
on all remaining
covered components.
* Applies to residential applications only.
See actual warranty certificate for details.
ECONOMICAL, HIGH-EFFICIENCY GAS HEATING
Duralok Plus® Heat Exchanger –
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
Merit® Series G43 Specifications
G43UF 24B-045 24B-070 36B-070 36C-090
AFUE 90% 90% 92.1% 92.1%
Dimensions HxWxD (in.) 40 x 17-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2 40 x 21 x 28-1/2
HxWxD (mm) 1016 x 446 x 724 1016 x 446 x 724 1016 x 446 x 724 1016 x 533 x 724
G43UF 48C-090 48C-110 60C-110 60D-135
AFUE 92.1% 92.1% 92.1% 92.1%
Dimensions HxWxD (in.) 40 x 21 x 28-1/2 40 x 21 x 28-1/2 40 x 21 x 28-1/2 40 x 24-1/2 x 28-1/2
HxWxD (mm) 1016 x 533 x 724 1016 x 533 x 724 1016 x 533 x 724 1016 x 622 x 724
Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.
Lennox is proud of the
fact that these products
have earned the Good
Housekeeping Seal.
(77M40) G43 8/05
PC42717
Many Lennox® home
comfort systems meet
ENERGY STAR® requirements
when used with appropriate
components. Ask your
dealer for details.
© Lennox Industries Inc. 2004
Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.
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