Superior Fireplaces DRT2000-C Series Installation And Operation Instructions Manual page 33

Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces
Table 20 - Venting Components Required for Various Exterior Wall Thicknesses, when using Typical Termination Kits
Termination Kit and 6" Vent Section (SV4.5L6)
Termination Kit and 12" Vent Section (SV4.5L12)
Termination Kit and Telescopic Section (SV4.5LA)
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 21 - Rear Vent—No Elbows
See Table 20 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: Use base vent restrictor with breakaway portion raised
when rear venting with only a slip collar and a termination.
NOTE: The compact termination can be used on 35" models
only. All other models require the small square termination
or the horizontal square termination.
Table 22 - Top Vent—One 90° Elbow, Elbow Connection at Fireplace
feet
Install the U-shaped vent restrictor in any vent run with more
than 4 ft of vertical rise. See Page 22 for more information.
See Table 20 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.
NOTE: The compact termination can be used on 35" models
only. All other models require the small square termination or
the horizontal square termination.
Vent Components Required
Termination Kit Only
and 6" vent section (SV4.5L6)
rigid vent pipe and terminal are shown in the figures. Secure Flex
®
H Maximum
meters feet
3 0.91
Exterior Wall Thickness
6 to 9-1/4" (152 to 235 mm)
10-3/4 to 14" (273 to 356 mm)
16-3/4 to 20" (426 to 508 mm)
11-3/4 to 20" (299 to 508 mm)
WARNING
H = 28 in. (711 mm) Maximum
H = 21" (533 mm) maximum
27-1/2"
(699 mm) to outside
of termination
* When using Secure Flex
V Minimum
wall firestop/spacer SF4.5HF.
meters
Elbow only
900948-00C, 06/2019
flexible vent pipe and
®
H
When using Secure Flex , use
®
**When using Secure Flex, use
wall firestop/spacer SF4.5HF, and
Wall Firestop/Spacer SF4.5HF.
install venting with a minimum of
12" rise. (Page 49).
, use
®
H
Wall
firestop/
spacer
SV4.5HF *
Installation
V
33