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Innovative Hearth Products
Superior™ DRT2000 and DRC2000 Direct-Vent Gas Fireplaces
Table 27: Rear Vent—Three 90° Elbows
H + H
+ H
Maximum
1
2
feet
meters
5
1.524
10
3.048
15
4.572
20
6.096
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 21 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.
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 28: Top Vent—Three 90° Elbows
H Maximum
feet
meters
5
5
10
15
20
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 21 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.
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).
An elbow is acceptable as 1 ft of vertical rise, but may not be connected directly to
the fireplace collar.
34
H Maximum
V Minimum
feet
meters
feet
2
0.610
1
4
1.219
2
6
1.829
3
8
2.438
4
V Minimum
feet
1.524
Elbow only
1.524
1
3.048
2
4.572
3
6.096
4
meters
0.305
0.610
H2
0.914
1.219
*
When using
Secure Flex
, use
®
ceiling firestop/spacer
SF4.5VF.
**
When using Secure
Flex, use wall firestop/
spacer SF4.5HF.
meters
H1
0.305
0.610
0.914
Wall firestop/
1.219
spacer
SV4.5HF **
Wall firestop/spacer
SV4.5HF **
H1
Ceiling
firestop/spacer
SV4.5VF *
V
V
*
When using Secure Flex
ceiling firestop/spacer SF4.5VF.
**
When using Secure Flex, use wall
firestop/spacer SF4.5HF.
Ceiling
firestop/spacer
SV4.5VF *
H
V1
Wall firestop/spacer
SV4.5HF **
Installation
900004-00, 04/2015
H
, use
®
V
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