Hearth and Home Technologies Fireside Burner/Hearth Kiths MTMHK18NG - Manual (Page 9)

Hearth & Home Technologies • Fireside Burner/Hearth Kits • 4004-304 Rev C • 08/2010 9
Figure 4.2 Center Grate Over Burner Pan
4
Installation Instructions
A. Install the Damper Stop
• Open the damper to the fully open position and secure it
open with the stop as shown in Figure 4.1.
• If the damper stop doesn’t fit your application, use a
permanent means that will keep the damper open at
least to the minimum vent opening as outlined in Table 1,
Section 1.B.
Figure 4.1 Damper Operation
B. Install the Burner/Pan Assembly
The burner/pan assembly is shipped ready for right-hand
gas connection. See Section 3.B. for left-hand connection.
• Remove the existing cap or gas jet assembly from the
gas stub in your fireplace. Clean the threads using a wire
brush or steel wool. Apply Teflon tape or pipe dope to the
steel fitting and attach the provided brass adapter to the
stub.
• Place the burner/pan assembly in the fireplace. The pan
should be centered both front to back and side to side.
• Bend the provided gas connector to facilitate its installation
between the burner and the gas stub.
• Attach one end of the gas connector to the brass elbow
or safety pilot fitting. Attach the other end to the brass
adapter at the gas tube.
C. Install the Grate
• The grate should be centered over the burner pan, side
to side. If the grate sits toward the front of the burner pan,
the flames will be larger coming through the logs. If the
grate sits toward the back of the burner pan, the ember
bed will be more prominent. Refer to Figure 4.2.
D. Place Sand and Rockwool
• Pour the sand into the burner pan. Sand should follow the
slope of pan, covering it and the burner tube completely.
• Allow the sand to spill out the front of the pan and over
the sides onto the fireplace floor.
• Lightly place dime-sized pieces of rockwool evenly on top
of the sand or vermiculite.
• The gas burns at the point of the least resistance. In
case of an uneven flame pattern it may be necessary to
adjust the materials in the pans (using an object such as
a screwdriver) to achieve the desired effect.
Explosion Risk
• Follow rockwool placement instructions
in this manual.
• Replace rockwool material annually.
Improperly placed rockwool interferes with
proper burner operation.
WARNING
Note: For best results, do not pack down the rock wool.
The placement of rock wool can have an effect on flame
pattern and may need to be adjusted to achieve a desired
appearance.