Monessen • Mojo Installation/Owner’s Manual • 4623-900 Rev. D • 04/21
6
E. Installation Information
Use manufacturer's installation and clearance require-
ments as defined in their manual.
This Gas-Fired Unvented Gas Log Type Room Heater is
approved for installation into a CSA/ANSI Z21.91:20 listed
Ventless Firebox Enclosure for Gas-Fired Unvented Gas
Log Type Room Heaters, so long as the firebox hearth
dimensions meet the minimum hearth dimensions listed
in this manual.
A
C
D
B
Figure 2.1 - Dimensions for Engine, Logs & Firebox
Model
A
B
C
D
MJ22 with LOGS
27"
13"
22"
15½
"
MJ27 with LOGS
31"
14"
26"
15½
"
This appliance is for installation only in a solid-fuel
burning masonry or UL127 factory-built fireplace
or in listed ventless firebox enclosure. It has been
design certified for these installations.
Exception:
DO NOT install this appliance in a factory-
built fireplace that includes instructions stating
it has not been tested or should not be used with
unvented gas logs.
WARNING
Model
A
B
C
D
MJ22
29"
14"
22"
21"
MJ27
33"
14"
26"
21"
Firebox Dimension Requirements
Dimensions for Engine & Logs
D. Check Parts
Verify contents to ensure you have received all parts. You
should have the following:
Models
•
Unvented gas log burner assembly
•
One (1) bag of crushed volcanic rock
•
Installation/operating instructions
•
Two (2) anchoring screws
•
Refractory logs (packaged and sold separately)
•
One (1) bag of rock wool
•
RC300 Remote Control
•
Four (4) AA batteries
•
Component Cover
Carefully inspect the contents for shipping damage. If any
parts are missing or damaged, immediately inform the
dealer from whom you purchased the appliance.
Do not
attempt to install any part of the appliance unless you
have all parts in good condition.
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