Monessen Hearth mhsc eyf18 User Manual

Page of 36
16 
65D1009
LO
HI
OFF
INSTALLING VENTED APPLICATION
PLACING AND SECURING APPLIANCE
ASSEMBLY PROCEDURE:
1.  Center the gas log unit in the fireplace or firebox. 
2.  Installing Grate: Insert longest middle grate bar in one of the two square holes in control panel. See Figure 12. Be 
sure grate is centered. Sit horizontal bar inside two hooks on front of control panel. See Figure 12. Make certain front 
feet of grate are located inside front edge of fireplace or firebox. 
3.  Anchor holes are located on the flange of the unit. See Figure 12. After centering the burner correctly, mark the hole 
positions on the fireplace/firebox floor. Drill two (2) 
5
/
32
" diameter holes approximately 1
1
/
2
" deep.
4.  Anchor the unit to the fireplace/firebox floor using the screws provided. See Figure 12.
Figure 12 - Installing Grate and Securing Heater to Floor of Fireplace/Firebox
Anchor 
Hole 
Screw
Screw
WARNING
You must secure the gas log heater to the fireplace floor. If not, the entire unit may 
move when you adjust the controls. Movement of unit may cause shifting of the gas 
logs which leads to sooting and improper burning. 
Special care is required if you are installing the unit into a sunken fireplace. You must 
raise the fireplace floor to allow access to gas log controls. This will insure adequate 
air flow and guard against sooting. Raise the fireplace floor using noncombustible 
materials, as described in Placement in a Fireplace with Restrictive Barrier on 
page 10
.
WARNING
The fireplace and gas logs function as a system. If the fireplace is spilling into the room 
(check with a match or a smoke stick), reposition the damper clamp until a positive 
draft is obtained by opening the damper. If negative pressure in home prevents having 
a positive draft, contact your dealer for assistance.
NOTE: Proper installation 
of the burner is 
essential to prevent any 
movement of the gas 
logs and controls during 
operation.
Hooks for 
Grate 
Horizontal 
Grate Bar
Hole for 
Grate Bar
Middle 
Grate Bar