UTICA BOILERS MAHF-125 Installation, Operation & Maintenance Manual page 11

4.3 Clearances
Combustion Air/Vent piping
Required distances measured from boiler jacket.
(1)
Service, proper operation clearance recommendation.
(2)
* Allowance for piping and venting not included.
NOTE: Greater clearances for access should supersede fire
protection clearances.
Service Clearances
Left Side View
of Boiler
Combustible Clearances
1 3/4 in
[45 mm
]
Closet Installation
0 in /0 mm between Back of Unit and wall
4 - LOCATING BOILER
TABLE 1: BOILER CLEARANCES
Dimension
Top
Left Side
Right Side
Front
Back
Bottom
125 & 150
13 9/16 in
[345 mm]
13.58 in /
345.00 mm
40 1/4 in
[1.02 m]
Minimum Clearance
17 3/4 in. [450 mm ]
From Front of Boiler
Back
0 in
[0 mm]
Top View
Top View
1 3/4 in
[45 mm]
0 in
[0 mm]
Manufacturer
Combustible
Recommended for
Materials
(1)
0" (0 cm) 8-5/8" (220 mm)
1-3/4" (45 mm) 12" (305 mm)
1-3/4" (45 mm) 1-3/4" (45 mm)
17-3/4"(450 mm)
0" (0 mm)
0" (0 mm)
0" (0 mm)
0" (0 mm) 6" (160 mm)
8 5/8 in [220 mm]
12 in
[305 mm]
1
3/4 in
[45 mm]
Front View of Boiler
11
Service
(1)(2)
0" (0 mm)
0"(0 mm)
Front View of
Boiler
17 3/4 in
1 3/4 in
[45 mm]
[450 mm]
0
in
[0 mm]
17 3/4 in
1
[45 mm]
[450 mm]
0
in
[0 mm]
240012565 REV A, [05/15/2019]
3/4 in