UHD L
OW
P
ROFILE
D
UCT
F
URNACE
I
NSTALLATION
O
PERATION
AND
S
ERVICE
M
ANUAL
40
SECTION 15: SPECIFICATIONS
15.1 Dimension Data
Model
UHD
[X][S][R] 75
UHD
[X][S][R] 100
UHD
[X][S][R] 125
A
Height
in
(cm)
17.79
(45.09)
23
(58.42)
23
(58.42)
B
Duct Connector Flange
in
(cm)
1.25
(3)
1.25
(3)
1.25
(3)
C
Center of Flue [Top Option]
in
(cm)
5.2
(13.21)
6.9
(17.53)
6.9
(17.53)
D
Center of Flue
in
(cm)
2.5
(6.35)
2.5
(6.35)
2.5
(6.35)
E
Minimum Inlet Duct Length
in
(cm)
32
(81.28)
37
(93.98)
37
(93.98)
Recommended Mounting Height to Heater Base
ft
(m)
12
(3.66)
20
(6.10)
20
(6.10)
Weight
lb
81
92
97
REAR VIEW
TOP VIEW
Gas S
u
pply
6.75"
(17 cm)
Fl
u
e
Air Intake
(UHD[X][S[]R]
only)
D
SIDE VIEW
C
Air Intake
(UHD[X][S][R] only;
Optional Position)
Fl
u
e
(Optional Position)
4 x 3/
8
" Capti
v
e
Nu
ts
Pro
v
ided
20.25"
( 51 cm)
2
8
.5"
(72 cm)
16.63"
(42 cm)
B
B
B
17.63"
(45 cm)
1
8
.25"
(46 cm)
Electrical
S
u
pply
A
1.
8
"
(5 cm)
6.75"
(17 cm)
1.5"
(4 cm)
6"
(15 cm)
6"
(15 cm)
6"
(15 cm)
3 .3"
(
8
cm)
Thermostat
Connection
E
E
A
