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Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces
Clearance to combustibles
Maintain the minimum clearance to combustibles (e.g., framing,
attic, ceiling insulation, etc.). For all vertical runs:
NOTE: Attic insulation shield (H3907, see Page 48) must be
installed when blown or loose-fill insulation is used, and is
required for all attic installations. For all horizontal/inclined runs:
Install the Vent System
10.
Install the Vertical Termination Vent System
These instructions should be used as a guideline and do not supersede local codes in any way. Install venting with
the most restrictive requirements as outlined in these instructions, local codes, these instructions,, the current
National Fuel Gas Code (ANSI-Z223.1) in the USA or the current standards of CAN/CGA-B149.1 in Canada .
Ensure clearances are in accordance with local installation codes and the requirements of the gas supplier.
Dégagement conforme aux codes d'installa tion locaux et aux exigences du foumisseunde gaz.
Vertical vent systems terminate through the roof. The minimum vent height above the roof and/or adjacent walls is
specified in ANSI Z223.1 (In Canada, the current CAN/CGA-B149.1 installation code) by major building codes. Always
consult your local codes for specific requirements. A general guide to follow is the gas vent rule (Table 6).
The following figures and their associated vertical vent tables illustrate the various configurations that are possible
for use with these fireplaces. Secure Vent
A table summarizes each configuration's minimum and maximum vertical and horizontal length parameters for a
variety of applications.
1. Refer to Figure 23 and Tables 16 - 19 on Pages 28 - 29 to select the type of vertical installation desired. Elbows
are available in 90° and 45° configurations. Refer to Figure 17 on Page 23 for the SV4.5E45 and SV4.5E90
elbow dimensional specifications.
Vertical (Straight) Installation
1. Determine the number of straight vent sections required—See Effective Vent Length on Pages 23 - 24 for
more information. Plan the vent lengths so that a joint does not occur at the intersection of ceiling or roof joists.
Figure 18 - Vertical (Straight) Installation
Max. 60 ft
(18.3 m)
pipe is shown in these figures; Secure Flex
®
SV4.5CGV-1 Termination
SV4.5FA or SV4.5FB Flashing
AND SV4.5SC Storm Collar
1" (26 mm) Minimum
Clearance to Combustibles
Attic Insulation Shield
Cat. # H3907 (required)
SV4.5VF
Firestop/Spacer*
*When using Secure Flex,
use Firestop/Spacer
SF4.5VF.
SV4.5L6/12/24/36/48
Vent Sections
900948-00C, 06/2019
• 1" (26 mm) from all sides
• 3" (77 mm) from the top
• 1" (26 mm) from the sides
• 1" (26 mm) from the bottom
pipe may also be used.
®
Installation
25
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