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Innovative Hearth Products
Superior™ DRT2000 and DRC2000 Direct-Vent Gas Fireplaces
Table 21: Venting Components Required for Various Exterior Wall Thicknesses, when using Typical Termination Kits
NOTE: See Figure 28 for wall thickness ranges when using SV4.5HTKCT termination kit.
Horizontal Vent Figures/Tables
NOTE: Secure Vent
terminal may also be used.
NOTE: Two (2) 45° elbows may be used in place of one (1) 90° elbow. The same rise to run ratios, as shown in the
venting figures for 90° elbows, must be followed if 45° elbows are used.
NOTE: Maintain the horizontal/inclined run in a straight (no dips), slightly elevated plane. The recommended incline
is approximately 1/4" per 1 ft (20 mm per 1 m) horizontal, in a direction away from the fireplace. Smaller rise per
foot run ratios are acceptable all the way to at or near level. Use a carpenter's level to measure from a constant
surface and adjust the support straps as necessary.
NOTE: SV4.5VF (Secure Vent), SF4.5VF (Secure Flex) firestop/spacer must be used any time vent pipe passes
through a combustible floor or ceiling. SV4.5HF (Secure Vent), SF4.5HF (Secure Flex) firestop/spacer must be used
any time vent pipe passes through a combustible wall.
Do not join separate sections of concentric flexible vent together.
Table 22: Rear Vent—No Elbows
Compact termination (SV4.5HTKCT) shown.
See Table 21 as an aid in venting component selection for a
particular range of exterior wall thicknesses.
Note: "H" is horizontal distance from rear of unit to outer wall
surface
Note: On 45" models only, 1" vertical rise is required when using
compact hoizontal termination with a rear vent.
Table 23: Top Vent—One 90° Elbow, Elbow Connection at Fireplace
Install the U-shaped vent restrictor in any vent run with
more than 4 ft of vertical rise. See Page 21 for more
information.
Compact termination (SV4.5HTKCT) shown.
See Table 21 as an aid in venting component selection for a
particular range of exterior wall thicknesses.
NOTE: Only in top vent where elbow is connected at fireplace collar
is it allowed to count elbow as 1 ft. vertical (V) rise.
32
Vent Components Required
Termination Kit Only
Termination Kit and 6" Vent Section (SV4.5L6)
Termination Kit and 12" Vent Section (SV4.5L12)
Termination Kit and Telescopic Section (SV4.5L12)
rigid vent pipe and terminal are shown in the figures. Secure Flex
®
H Maximum
feet
meters
feet
3
0.91
Exterior Wall Thickness
6–9 1/4" (152–235 mm)
10 3/4–14" (273–356 mm)
16 3/4–20" (426–508 mm)
11 3/4–20" (299–508 mm)
WARNING
H = 21" (533 mm) maximum
V Minimum
*
When using Secure Flex
wall firestop/spacer SF4.5HF.
meters
Elbow only
flexible vent pipe and
®
H
When using Secure Flex
wall firestop/spacer SF4.5HF, and
27 1/2"
install venting with a minimum of
(699 mm)
12" rise. (Page 35).
, use
®
H
Wall
firestop/
spacer
SV4.5HF *
Installation
900004-00, 04/2015
, use
®
V
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