Table of Contents
Advertisement
Innovative Hearth Products
DRT63ST Direct-Vent Gas Fireplaces
VERTICAL TERMINATION SYSTEM
FIGURES AND TABLES
8" DV Lock rigid vent pipe and termination
components are shown in the figures.
NOTE: Two 45-degree elbows may be used
in place of one 90-degree elbow. If using
45-degree elbows, follow the same rise-to-
run ratios as shown for 90-degree elbows.
NOTICE
8" DV Lock Vertical Firestop (8DVLVF)
must be used anywhere vent pipe passes
through a combustible floor or ceiling. 8"
DV Lock Horizontal Firestop (8DVLHT4)
must be used anywhere vent pipe passes
through a combustible wall.
It is important to install horizontal runs on
a steady, (i.e., no "dips"), slightly positive
incline of approximately 1/4" rise-per-foot
(20 millimeters rise-per-meter) horizontal,
in a direction away from the fireplace.
(Slightly smaller rise-per-foot run ratios are
acceptable.) Use a carpenter's level to mea-
sure from a constant surface, and adjust wall
support straps as necessary.
Vertical Termination System
with Straight Vertical Venting
Ceiling
60 ft (18.3 m) max.
Vertical Firestop
6 ft (1.83 m) min.
(8DVLVF)
*
*Install the provided Vent Restrictor
(see Page 19).
Figure 26
Vertical Termination System with Offset Vertical Venting using Two 90-Degree Elbows
H max.
V + V
min.
1
feet
(meters)
feet (meters)
10
(3.1)
2.5
(0.762)
15
(4.65)
3.5
(1.06)
20
(6.2)
4.5
(1.37)
V + V
+ H = 40 ft (12.4 m) max.
1
V + V
= 11 ft (3.3 m) min.
1
Example: A 20-ft horizontal vent run (H + H
would require 4.5 ft min. vertical vent (V + V
Figure 27
Vertical Termination System with Offset Vertical Venting using Three 90-Degree Elbows
V 1
H + H
max.
V + V
min.
1
1
feet
(meters)
feet
(meters)
10
(3.1)
2.5
(0.762)
15
(4.65)
3.5
(1.06)
20
(6.2)
4.5
(1.37)
H + H
= 20 ft (6.2 m) max.
1
V + V
= 11 ft (3.3 m) min.
1
V + V
+ H + H
= 40 ft (12.4 m) max.
1
1
Example: A 20-ft horizontal vent run (H + H
would require 4.5 ft min. vertical vent (V + V
Figure 28
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
H
Vertical Firestop
(8DVLVF)
V
1
*
)
1
).
1
*Install the provided Vent Restrictor (see Page 19).
Vertical Firestop
(8DVLVF)
H
H 1
)
1
).
1
*Install the provided Vent Restrictor (see Page 19).
Installation Instructions
900355-01, 01/2020
V
Horizontal Firestop
(8DVLHT4)
V
*
23
Advertisement
Table of Contents
