Hearth and Home Technologies Montana-36 - Manual (Page 8)

8 4039-150 Rev B 01/04
MONTANA INSTALLATION INSTRUCTIONS
Figure 3 - Installation Along a Wall
or an Exterior Chase
Figure 4 - Corner Installation
WARNING!
To prevent contact with sagging or loose insulation, the fireplace must not be installed against vapor barriers
or exposed insulation. Localized overheating could occur and a fire could result.
These are rough framing dimensions only.
D. PRE-INSTALLATION PREPARATION
1. Fireplace Locations and Space Requirements
This fireplace is intended for installation on an outdoor patio or in your yard. It must never be installed inside of the warm air
envelope of your structure. Significant cold air infiltration will result if it is installed inside of the structure. Figure 2 shows two
typical installations.
Figures 3 and 4 show two typical installations assuming an outside air kit is being used. Therefore, an allowance must be made for
90° bends. Less space is required when ducting goes directly outside without forming elbows.
CLEARANCES!
A minimum 1½” air clearance must be maintained
at the back and sides of the fireplace assembly ex-
cept at the nailing flange where the clearance is ½”.
Chimney sections at any level require a 2” minimum
air space clearance between the framing and chim-
ney section.
Note: If the fireplace is a freestanding fireplace, it must
be located a minimum of 10’ from a combustible struc-
ture.
A minimum height of 6’ 4” measured from the base of the
fireplace to the bottom of the termination cap is permit-
ted in this installation.
Figure 2 - Fireplace Locations
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