8
I-EEDU (02-21) 150492-A
Clearances
The unit must be installed so that clearances are provided for combustion air space, for service and inspection, and
for proper spacing from combustible construction . Clearance to combustibles is defined as the necessary minimum
distance from the heater to a surface or object that ensures that a surface temperature does not exceed 90°F above
the surrounding ambient temperature .
lists required clearances .
NOTE: The required service clearance is shown in
.
Weights
Unit weights are listed in
.
GENERAL INFORMATION—CONTINUED
Dimensions—Continued
Table 3. Unit Dimensions
Unit
Size
Dimension (Inches (mm))
*
A
B
C
D
E
F
G
H
J
K
L
M
Natural
Gas
Units
Propane
Units
075,
100
35
(889)
14-1/4
(362)
35-11/16
(906)
14-5/8
(371)
4-3/8
(111)
3-15/16
(100)
1/2
(13)
1/2
(13)
5/8
(16)
12-1/2
(318)
7-1/4
(184)
7-7/16
(189)
4-5/8
(117)
125,
140
35
(889)
17
(432)
35-11/16
(906)
17-3/8
(441)
4-3/8
(111)
3-15/16
(100)
1/2
(13)
1/2
(13)
5/8
(16)
15-1/4
(387)
7-1/4
(184)
7-7/16
(189)
6
(152)
170
35
(889)
19-3/4
(502)
35-11/16
(906)
20-1/8
(511)
4-3/8
(111)
3-15/16
(100)
1/2
(13)
1/2
(13)
5/8
(16)
18
(457)
7-1/4
(184)
7-7/16
(189)
7-3/8
(187)
200
35
(889)
22-1/2
(572)
35-11/16
(906)
22-7/8
(581)
4-3/8
(111)
3-15/16
(100)
1/2
(13)
1/2
(13)
5/8
(16)
20-3/4
(527)
7-1/4
(184)
7-7/16
(189)
8-3/4
(222)
225
35-3/4
(908)
25-1/4
(641)
35-11/16
(906)
25-5/8
(651)
4-3/8
(111)
4-15/16
(125)
1/2
(13)
1/2
(13)
1-3/8
(35)
23-1/2
(597)
7-1/4
(184)
7-7/16
(189)
10-1/8
(257)
250
35-3/4
(908)
28
(711)
35-11/16
(906)
28-3/8
(721)
7-1/8
(181)
4-15/16
(125)
1/2
(13)
1/2
(13)
1-3/8
(35)
26-1/4
(667)
7-1/4
(184)
7-7/16
(189)
11-1/2
(292)
300
36
(914)
33-1/2
(851)
38-1/8
(968)
33-7/8
(860)
9-7/8
(251)
5-15/16
(151)
3/4
(19)
1/2
(13)
1-3/8
(35)
31-3/4
(806)
9-9/16
(243)
7-5/8
(194)
13-7/8
(352)
350
36
(914)
39
(991)
38-1/8
(968)
39-3/8
(1000)
12-5/8
(321)
5-15/16
(151)
3/4
(19)
1/2
(13)
1-3/8
(35)
37-1/4
(946)
9-9/16
(243)
7-5/8
(194)
16-5/8
(422)
400
36
(914)
44-1/2
(1130)
38-1/8
(968)
44-7/8
(1140)
15-3/8
(391)
5-15/16
(151)
3/4
(19)
1/2
(13)
1-3/8
(35)
42-3/4
(1086)
9-9/16
(243)
7-5/8
(194)
19-3/8
(492)
*
See
Table 4. Required Clearances
Front
Top
Flue Connector
Sides
Bottom
Rear
Required Clearance (Inches (mm))
6 (152)
12 (305)
29 (737)
Table 5. Unit Weights
Unit Size
075, 100
125
140
170
200
225
250
300
350
400
Net Weight (Pounds (kg))
104 (47)
126 (57)
128 (58)
150 (68)
172 (78)
194 (88)
216 (98)
262 (119)
306 (139)
328 (149)