Installation
900004-00, 01/2015
Innovative Hearth Products
Superior™ DRT2000 and DRC2000 Direct-Vent Gas Fireplaces
31
Table 21: Venting Components Required for Various Exterior Wall Thicknesses, when using Typical Termination Kits
Vent Components Required Exterior Wall Thickness
Termination Kit Only 6–9 1/4” (152–235 mm)
Termination Kit and 6” Vent Section (SV4.5L6) 10 3/4–14” (273–356 mm)
Termination Kit and 12” Vent Section (SV4.5L12) 16 3/4–20” (426–508 mm)
Termination Kit and Telescopic Section (SV4.5L12) 11 3/4–20” (299–508 mm)
NOTE: See Figure 28 for wall thickness ranges when using SV4.5HTKCT termination kit.
Horizontal Vent Figures/Tables
NOTE: Secure Vent
®
rigid vent pipe and terminal are shown in the figures. Secure Flex
®
flexible vent pipe and
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.
WARNING
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.
When using Secure Flex
®
, use
wall firestop/spacer SF4.5HF, and
install venting with a minimum of
12” rise. (Page 34).
H = 21” (533 mm) maximum
27 1/2”
(699 mm)
Table 23: Top Vent—One 90° Elbow, Elbow Connection at Fireplace
H Maximum V Minimum
Wall
firestop/
spacer
SV4.5HF *
When using Secure Flex
®
, use
wall firestop/spacer SF4.5HF.
*
H
V
feet meters feet meters
3 0.91 Elbow only
Install the U-shaped vent restrictor in any vent run with
more than 4 ft of vertical rise. See Page 20 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.
H
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