Vented Application Installation; Assembly - Monessen Hearth NB18 Installation And Operating Instructions Manual

NB18/NB24 Gas Log Set
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.
ASSEMBLY PROCEDURE
1. Center the gas log unit on the fireplace or firebox. Make
certain the front of the burner sits inside the front edge
of the fireplace or firebox.
2. Anchor holes are located on the right and left sides of
the unit. After centering the burner correctly, mark the
hole positions on the fireplace/firebox floor. Drill two (2)
5/32" diameter holes approximately 1
3. Anchor the grate to the fireplace/firebox floor using the
screws provided. Figure 14
Proper installation of the grate is essential to prevent
any movement of the gas logs and controls during
operation.
Screw
Figure 14 -
Securing Heater to Floor of Fireplace/Firebox
Monessen • NB18/24 Gas Log Set Installation/Owner's Manual • 81D0107 • Rev I • 01/19
VENTED APPLICATION INSTALLATION / SECURE APPLIANCE
⁄ " deep.
1
2
FP2263
secure to floor
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. Grate movement could cause a
gas leak.
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 6.
Screw
Anchor Hole
FP2264
13