Raised Installation; Section 2: Framing - Montigo R320 Installation & Maintenance Manual

Raised Installation:

Determine the height of the platform based on where you want the
bottom edge of the glass to be, see figure 1 or 1a for unit dimensions.
Maintain minimum ceiling height shown in table. Build fireplace frame
as shown in figure 3.
Figure 3. Fireplace installation, (Rough Frame-In dimensions).
† U is 29" for straight out the back vent run installations.
XG0770 - 040513.2
Installation
Q (Opening)
Framing Dimensions
Model Q R
R-Series R320* 55" 47" **23¾"†
R-Series R420* 67" 47" **23¾"†
** See Figure 1 or 1a.
R320 & R420 Power Vent Indoor Gas Fireplace
Maximum
Platform Height
24"
48"
U
(Opening)
Minimum Required
Ceiling Height
8'
10'
U
Drywall
or Equiv.
R
3/4"
Plywood
Platform
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