Installation
900005-00, 10/2015
Innovative Hearth Products
Envy™ Direct-Vent Gas Fireplaces
14
MINIMUM CLEARANCES TO COMBUSTIBLES
Fireplace And Vent Clearances
The fireplace is approved with zero clearance to combustible materials on all sides (
Table 7
), with the following
exception: The unit may not be recessed (allowance made for mantel legs / side trim in
Figure 5
). When the unit is
installed with one side flush with a wall, the wall on the other side of the unit must not extend beyond the front edge
of the unit (
Figure 5
).
Table 7 - Minimum Clearances *
Back
1/2” (13 mm) to wrapper
0” (0 mm) to Spacers
Sides
1/2” (13 mm) to wrapper
0” (0 mm) to Spacers **
Top Standoffs
0” (0 mm)
Floor
0” (0 mm)
From Bottom of Unit to Ceiling
78” (1981 mm)
Vent
3” (76 mm)—Top * **
1” (25.4 mm)—Sides and Bottom
Front Service Clearance—
clearance immediately in front of viewing area(s)
36” (914 mm)—Front
12” (305 mm)—Sides and Bottom
* 3” (76 mm) above any horizontal/inclined vent component.
** See Page 19 for clearance requirements to the nailing flange located at each side of the unit and any screw heads adjacent to it.
The fireplace must be mounted on a fully supported base extending the full width and depth of the unit. The fireplace
may be located on or near conventional construction materials. However, if installed on combustible materials, such
as carpeting, vinyl tile or other combustible material other than wood flooring, the appliance shall be installed on a
metal or wood panel extending the full width and depth of the appliance.
Hearth Extension
A hearth extension must be built from non-combustible, heat-resistant materials (e.g., Micore
®
160, Glasscrete
®
,
Durock
®
, or a similar material). It must extend the width of the fireplace opening and at least 20” in front of the
fireplace.
• A hearth extension is required if the fireplace is installed less than 6” above the finished floor surface.
• A hearth extension is not required if the fireplace is installed at least 6” above the finished floor surface.
Shelf Height
To provide the lowest possible shelf surface, the venting attached to the top vent should be routed in a way to
minimize obstructions to the space above the fireplace. Do not insulate the space between the fireplace and the area
above it (
Table 8
). The minimum height from the base of the fireplace to the underside of combustible materials
used to construct a utility shelf in this fashion is shown in
Table 8
.
Table 8 - Combustible Shelf Height—Top Vent
Model
Top Vent with one 90° Elbow
78”
Minimum
Shelf Height
(see table)
No combustibles
or insulation
in the shaded
area between
the appliance
and the shelf
above it.
Minimum 12”
(305 mm) vent
section required
before elbow.
Secure Vent
®
Secure Flex
®
(flex elbow)
All
73-1/2” (1867 mm) *
73-1/2” (1867 mm) *
* Includes 3” (76 mm) clearance to combustibles (required above vent components)
