Superior DRT2000 - Page 27

Installation
900004-00, 01/2015
Innovative Hearth Products
Superior™ DRT2000 and DRC2000 Direct-Vent Gas Fireplaces
27
Table 18: Top Vent—Two 90° Elbows Table 19: Rear Vent—Three Elbows Table 20: Top Vent—Three Elbows
Ceiling firestop/
spacer SV4.5VF *
Wall firestop/
spacer SV4.5HF **
When using Secure Flex
®
, use
ceiling firestop/spacer SF4.5VF.
When using Secure Flex, use
wall firestop/spacer SF4.5HF.
*
**
V1
H
V
V
V
Ceiling
firestop/spacer
SV4.5VF *
Wall firestop/
spacer
SV4.5HF **
When using
Secure Flex
®
, use
ceiling firestop/
spacer SF4.5VF.
When using
Secure Flex, use
wall firestop/
spacer SF4.5HF.
*
**
V1
H
Ceiling
firestop/spacer
SV4.5VF *
H1
Ceiling
firestop/spacer
SV4.5VF *
Wall firestop/
spacer
SV4.5HF **
When using Secure Flex
®
, use
ceiling firestop/spacer SF4.5VF.
When using Secure Flex, use
wall firestop/spacer SF4.5HF.
*
**
V1
H
V
H1
H Maximum V Minimum
H + H
1
Maximum
H Maximum V Minimum H + H
1
Maximum V Minimum
feet meters feet meters ft m ft m ft m feet meters feet meters
5 1.524 Elbow Only 5 1.524 2 0.610 1 0.305 5 1.524 Elbow Only
5 1.524 1 0.305 10 3.048 4 1.219 2 0.610 5 1.524 1 0.305
10 3.048 2 0.610 15 4.572 6 1.829 3 0.914 10 3.048 2 0.610
15 4.572 3 0.914 20 6.096 8 2.438 4 1.219 15 4.572 3 0.914
25 7.62 5 1.524
H = 8 ft (2.4 m) maximum
H + H1 = 20 ft (6.1 m) maximum
V + V1 + H + H1 = 60 ft (18.3 m) maximum
Install the U-shaped vent restrictor in any vent run
with more than 6 ft of vertical rise. See Page 20
for more information.
If 20 ft of (H) horizontal vent run is needed,
then 4 ft (straight section) minimum of
(V) vertical vent will be required.
This table shows a 1 (V) to 5 (H) ratio. For
every 1 ft of (V) vertical, you are allowed
5 ft of (H) horizontal run, up to a maximum
horizontal run of 20 ft.
NOTE: The vent system may have a
maximum of three (3) 90° elbows.
Minimum 6 ft of vertical venting.
20 6.096 4 1.219
V + V
1
+ H = 60 ft (18.3 m) maximum
H = 25 ft (7.62 m) maximum
Install the U-shaped vent restrictor in any vent run
with more than 6 ft of vertical rise. See Page 20
for more information.
If 25 ft of (H) horizontal vent run is needed,
then 5 ft (straight section) minimum of
(V) vertical vent will be required.
This table shows a 1 (V) to 5 (H) ratio. For
every 1 ft of (V) vertical, you are allowed
5 ft of (H) horizontal run, up to a maximum
horizontal run of 25 ft.
Minimum 6 ft and maximum of 60 ft of
vertical venting.
H + H1 = 20 ft (6.1 m) maximum
V + V1 + H + H1 = 60 ft (18.3 m) maximum
Install the U-shaped vent restrictor in any vent
run with more than 6 ft of vertical rise. See
Page 20 for more information.
If 20 ft of (H) horizontal vent run is
needed, then 4 ft (straight section)
minimum of (V) vertical vent will be
required.
This table shows a 1 (V) to 5 (H) ratio.
For every 1 ft of (V) vertical, you are
allowed 5 ft of (H) horizontal run, up to a
maximum horizontal run of 20 ft.
NOTE: The vent system may have a
maximum of three (3) 90° elbows.
Minimum 6 ft and maximum of 60 ft of
vertical venting.