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Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces
MINIMUM CLEARANCES TO COMBUSTIBLES
Fireplace And Vent Clearances
The fireplace is approved with zero clearance to combustible materials
on all sides (Table 8), 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).
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 is not required with this fireplace. Any hearth extension used is for appearance only and does not have to conform to
standard hearth extension installation requirements.
Shelf Height
To provide for the lowest possible shelf surface, use the rear vent model. For top vent models, 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 (Tables 9A anc 9B). 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 Tables 9A and 9B.
Table 9A- Combustible Shelf Height—Top Vent
Model
35" Models
40" Models
45" Models
CLEARANCES TO COMBUSTIBLES MUST BE MAINTAINED
No combustible materials or insulation is permitted in the shaded area
between the appliance and the shelf above it.
WARNING
LOWED CAN RESULT IN A SAFETY HAZARD!
Table 9B - Combustible Shelf Height—Rear Vent
Model
35" Models
40" Models
45" Models
CLEARANCES TO COMBUSTIBLES MUST BE MAINTAINED
No combustible materials or insulation is permitted in the shaded area
between the appliance and the shelf above it.
WARNING
LOWED CAN RESULT IN A SAFETY HAZARD!
* Includes 3" clearance to combustibles (required above vent components)
** In alternative, Rear Vent applications, Top Vent will be sealed as detailed in Installation Sequence Step 4 (Page 20).
Top Vent with one 90° Elbow *
Secure Vent
®
(using rigid elbow)
47" (1194 mm)
52" (1321 mm)
52" (1321 mm)
: CRITICAL INSTALLATION INFORMATION THAT IF NOT FOL-
Rear Vent with two 90° Elbows **
Secure Vent
®
(using rigid elbow)
47" (1194 mm)
52" (1321 mm)
52" (1321 mm)
: CRITICAL INSTALLATION INFORMATION THAT IF NOT FOL-
Table 8 - Minimum Clearances *
Back ***
Sides
Top Standoffs
Floor
From Bottom of Unit to Ceiling
Vent
Front Service Clearance—
clearance immediately in front of
viewing area(s)
*
3" (77 mm) above any horizontal/inclined vent component.
** See Page 21 for clearance requirements to the nailing flange
located at each side of the unit and any screw heads adjacent to it.
*** When in top vent mode; no combustible material shall be allowed to
contact the rear flue cap/cover.
Secure Flex
®
(using flex elbow)
49" (1245 mm)
54" (1372 mm)
54" (1372 mm)
:
Secure Flex
®
(using flex elbow)
49" (1245 mm)
54" (1372 mm)
54" (1372 mm)
:
Installation
900948-00E, 07/2020
1-1/2" (38mm) to wrapper
0" (0 mm) to Spacers
1/2" (13 mm) to wrapper
0" (0 mm) to Spacers **
0" (0 mm) to top standoffs
0" (0 mm)
64" (1626 mm)
3" (77 mm)—Top *
1" (26 mm)—Sides and Bottom
36" (914 mm)
Shelf Height
(see table)
≥3" clearance from shelf to
top of fireplace and/or vent
pipe, whichever is higher
Shelf Height
(see table)
15
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