Merit, Series g40 gas furnace, Efficient, consistent warmth—year after year – Lenoxx Electronics G40 User Manual
Page 2

Mid-efficiency levels save
you money, compared to
older furnaces
Durable, high-quality design
for long-lasting performance
Merit
®
Series G40 Gas Furnace
EFFiciEnt, consistEnt wArmth—yEAr AFtEr yEAr
G40
80% AFUe
i
n
n
o
va
ti
o
n
n
ev
er
f
el
t
so
g
oo
d
.
™
eFFiciency rAtinG
80% AFUE
(Annual Fuel
Utilization Efficiency)
WArrAnty*
20-year limited warranty
on the heat exchanger.
5-year limited warranty
on all remaining
covered components.
© Lennox Industries Inc. 2002
Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.
(37M96) G40 2/07
PC48540
merit
®
series G40 specifications
UH36A-045
G40
UH24A-045 (X)
UH24A-070
UH36A-070
UH36B-090
UH36C-110
UH48B-070
UH48B-090 (X)
AFUE
80%
80%
80%
80%
80%
80%
80%
Dimensions HxWxD (in.)
40 x 14-1/2 x 28-1/2 40 x 14-1/2 x 28-1/2 40 x 14-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2 40 x 21 x 28-1/2
40 x 17-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2
HxWxD (mm) 1016 x 368 x 724
1016 x 368 x 724
1016 x 368 x 724
1016 x 446 x 724
1016 x 533 x 724
1016 x 446 x 724
1016 x 446 x 724
G40
UH48C-110
UH60C-110 (X)
UH48C-135
UH60D-135
UH60D-155
DF-24A-045 (X)
DF-36A-045
AFUE
80%
80%
80%
80%
80%
80%
80%
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 40 x 24-1/2 x 28-1/2 40 x 14-1/2 x 28-1/2 40 x 14-1/2 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
1016 x 622 x 724
1016 x 368 x 724
1016 x 368 x 724
G40
DF-36A-070 (X)
DF-36B-090
DF-48B-070
DF-48C-090 (X)
DF-48C-110 (X)
DF-60C-110 (X)
DF-60D-135
AFUE
80%
80%
80%
80%
80%
80%
80%
Dimensions HxWxD (in.)
40 x 14-1/2 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
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 368 x 724
1016 x 446 x 724
1016 x 446 x 724
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.
THIS MODEL
80%
Lennox is proud of the
fact that these products
have earned the Good
Housekeeping Seal.
year-round comfort
– Built to
deliver outstanding comfort,
year after year.
Duralok
®
heat Exchanger
–
Made of high-quality, patented
ArmorTuf
™
aluminized steel.
Life-tested to 2-1/2 times agency
requirements (ANSI Standard
Z21.47) for long product life
and durability.
hot surface igniter
– Delivers
starting reliability.
Durable steel cabinet
–
Constructed of heavy-gauge steel
and protected by a high-quality,
textured-paint finish.
* Applies to residential applications only.
See actual warranty certificate for details.