Figure 5. Completed back frame Fireplace installation
Back framing the Fireplace
NOTE:
Maintain a 1" clearance around the throat (projection at the front of the fireplace that holds the glass door) when installing 2x4s
for back framing�
Step 1)�
Cut and install one 2x4 to fit horizontally under the fireplace throat.
Step 2)�
Cut and install required quantity of short filler 2x4's to fit vertically under the horizontal piece.
Step 3)�
Cut and install four vertical 2x4's. Place 2 on each side of the fireplace throat.
Step 4)�
Join the two steel header pieces to get the required length, see chart below for steel header measurements�
Step 5)�
Install supplied steel header 1" above the throat. Attach steel header to vertical 2x4's as shown in
figure 5
�
Step 6)�
Cut and install one horizontal 2x4 below the top frame�
1” clearance
1” clearance
Model
Supplied Steel
Header
Measurements
Installed Steel
Header
Measurements
R720*
80" x 3" - qty 2
95" x 3"
R820*
80" x 3" - qty 2
107" x 3"
Steel header
(supplied by Montigo)
2-pcs 2 x 4 (vertical)
Both Sides Typ.
1” clearance
1” clearance
2 x 4
(horizontal)
2 x 4
(horizontal)
2 x 4
(Vertical)
Note:
Images are shown without screens for clarity purposes�
However, your fireplace should not be operated without proper
installation of screens�
R720 & R820 Power Vent Indoor Gas Fireplace
Page 13
XG0772 - 150105�4
Installation
