Superior DRC3035DEN Installation And Operation Instructions Manual page 35

Innovative Hearth Products
Superior DRT/C3000 Series Direct-Vent Gas Fireplaces
TM
Table 26: Rear Vent—Three 90° Elbows
H + H + H Maximum H Maximum
1 2
feet meters feet
5 1.524 2
10 3.048 4
15 4.572 6
20 6.096 8
V + H + H + H = 60 ft (18.288 m) maximum
1 2
H = 8 ft (2.438 m) maximum
H + H + H = 25 ft (7.62 m) maximum
1 2
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.
If 20 ft of (H) horizontal vent run is needed, then 4 ft 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 (6.096 m).
Table 27: Top Vent—Three 90° Elbows
H Maximum
feet meters
5 1.524
5 1.524
10 3.048
15 4.572
20 6.096
H + H = 25 ft (7.62 m) maximum
1
V + V + H + H = 60 ft (18.288 m) maximum
1 1
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.
If 20 ft of (H) horizontal vent run is needed, then 4 ft 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 (6.096 m).
V Minimum
meters feet meters
0.610 1 0.305
1.219 2 0.610
1.829 3 0.914
2.438 4 1.219
V Minimum
feet meters
Elbow only
1 0.305
2 0.610
3 0.914
4 1.219
Wall firestop/spacer
Wall Firestop/Spacer
SV4.5HF **
SV4.5HF**
H2
H
2
* When using
*When using Secure Flex , use
®
Secure Flex , use
®
Ceiling Firestop/Spacer SF4.5VF.
ceiling firestop/spacer
**When using Secure Flex, use
SF4.5VF.
Wall Firestop/Spacer SF4.5HF.
**
When using Secure
V V
Flex, use wall firestop/
spacer SF4.5HF.
H1
H
1
Wall firestop/spacer
Wall Firestop/Spacer
SV4.5HF **
V1
SV4.5HF**
V 1
900285-00 05/2015
H1
H
1
Ceiling
Ceiling
firestop/spacer
Firestop/Spacer
SV4.5VF *
SV4.5VF*
H
H
When using Secure Flex , use
®
*When using Secure Flex, use *
ceiling firestop/spacer SF4.5VF.
Ceiling Firestop/Spacer SF4.5VF.
When using Secure Flex, use wall
**
**When using Secure Flex, use
firestop/spacer SF4.5HF.
Wall Firestop/Spacer SF4.5HF.
Ceiling
Ceiling
firestop/spacer
Firestop/Spacer
SV4.5VF *
SV4.5VF*
H
H
Wall firestop/spacer
Wall Firestop/Spacer
SV4.5HF **
SV4.5HF**
Installation
V
V
35