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GENERAL INSTALLATION INFORMATION
In planning the installation for the appliance it is necessary to determine where the unit is to be installed and whether optional
accessories are desired. Gas supply piping should also be planned. The following steps represent the normal sequence of
installation. Each installation is unique, however, and might require a different sequence.
1.
Position fi rebox prior to framing or into prepared framing.
2.
Field wire main power supply to models with fan kit. (Electrical connections should only be performed by an experi-
enced, licensed /certifi ed tradesman).
3.
Plumb gas line. (Gas connections should only be performed by an experienced, licensed/certifi ed tradesman).
4.
Install vent-free gas log heater per the instructions provided with the vent-free gas log heater.
5.
Complete fi nish wall material, surround and optional hearth extension to your individual taste.
FIREBOX EXTERNAL DIMENSIONS
E
6
/
"
3
4
26
/
"
1
2
2
/
"
1
2
6
/
"
3
4
6
D
F
H
B
2
/
"
1
2
A
Figure 1 - Firebox Dimensions
MCUF36
MCUF36
A
41"
41"
B
36"
36"
1
C
20
/
"
"
2
1
D
30
/
"
"
2
1
E
24
/
"
"
4
F
21"
21"
21"
H
36"
36"
36"
C
/
"-
/
"
1
5
2
8
27"
9
/
"
5
8
MCUF42
MCUF42
47"
47"
42"
42"
1
20
20
/
"
2
1
36
36
/
"
2
1
24
24
/
"
4
27"
27"
27"
42"
42"
42"
43
40"
2" Knockout
8
/
"
1
4
26D4720
/
"
3
4
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