Installation
900004-00, 01/2015
Innovative Hearth Products
Superior™ DRT2000 and DRC2000 Direct-Vent Gas Fireplaces
22
Vent section length table
Table 15 will assist calculating how many vent sections are needed for the planned vent configuration. When a vent
section is engaged with another section, its effective length will be 1 1/2” shorter.
Table 15: Vent Section Length
Nominal Section
Length (in.)
6 12 24 36 48
Total Qty
Nominal Section Length
(in.)
6 12 24 36 48
Total Qty
Net Section Length
(in.)
4.5 10.5 22.5 34.5 46.5 Net Section Length (in.) 4.5 10.5 22.5 34.5 46.5
Height of Vent
Number of Vent Sections
Height of Vent
Number of Vent Sections
in. ft in. ft
4.5 0.375 1 0 0 0 0 1 252 21 0 1 0 7 0 8
9 0.75 2 0 0 0 0 2 276 23 0 0 0 8 0 8
10.5 0.875 0 1 0 0 0 1 279 23.25 0 0 0 0 6 6
15 1.25 1 1 0 0 0 2 280.5 23.375 1 0 0 8 0 9
22.5 1.875 0 0 1 0 0 1 289.5 24.125 0 1 0 0 6 7
31.5 2.625 0 3 0 0 0 3 301.5 25.125 0 0 1 0 6 7
34.5 2.875 0 0 0 1 0 1 310.5 25.875 0 0 0 9 0 9
37.5 3.125 1 1 1 0 0 3 325.5 27.125 0 0 0 0 7 7
43.5 3.625 0 2 1 0 0 3 330 27.5 1 0 0 0 7 8
45 3.75 0 0 2 0 0 2 345 28.75 0 0 0 10 0 10
46.5 3.875 0 0 0 0 1 1 349.5 29.125 1 0 0 10 0 11
51 4.25 1 0 0 0 1 2 372 31 0 0 0 0 8 8
55.5 4.625 0 1 2 0 0 3 379.5 31.625 0 0 0 11 0 11
57 4.75 0 0 1 1 0 2 418.5 34.875 0 0 0 0 9 9
67.5 5.625 0 0 3 0 0 3 465 38.75 0 0 0 0 10 10
69 5.75 0 0 0 2 0 2 475.5 39.625 0 1 0 0 10 11
73.5 6.125 1 0 0 2 0 3 480 40 1 1 0 0 10 12
79.5 6.625 0 1 0 2 0 3 492 41 1 0 1 0 10 12
81 6.75 0 0 0 1 1 2 499.5 41.625 0 0 0 1 10 11
91.5 7.625 0 0 2 0 1 3 504 42 1 0 0 1 10 12
93 7.75 0 0 0 0 2 2 511.5 42.625 0 0 0 0 11 11
97.5 8.125 1 0 0 0 2 3 520.5 43.375 0 2 0 1 11 14
103.5 8.625 0 0 0 3 0 3 531 44.25 0 2 2 0 11 15
108 9 1 0 0 3 0 4 538.5 44.875 1 0 0 2 11 14
117 9.75 1 0 5 0 0 6 549 45.75 1 0 2 1 11 15
118.5 9.875 1 1 0 3 0 5 558 46.5 0 0 0 0 12 12
126 10.5 0 0 1 3 0 4 562.5 46.875 1 0 0 0 12 13
130.5 10.875 1 0 1 3 0 5 568.5 47.375 0 1 0 0 12 13
135 11.25 0 0 6 0 0 6 573 47.75 1 1 0 0 12 14
139.5 11.625 0 0 0 0 3 3 580.5 48.375 0 0 1 0 12 13
142.5 11.875 1 0 0 4 0 5 589.5 49.125 0 1 2 2 10 15
144 12 1 0 0 0 3 4 595.5 49.625 1 1 1 0 12 15
154.5 12.875 1 1 0 0 3 5 604.5 50.375 0 0 0 0 13 13
160.5 13.375 0 2 0 0 3 5 615 51.25 0 1 0 0 13 14
172.5 14.375 0 0 0 5 0 5 625.5 52.125 0 2 0 0 13 15
177 14.75 1 0 0 5 0 6 631.5 52.625 1 0 1 0 13 15
186 15.5 0 0 0 0 4 4 637.5 53.125 0 1 1 0 13 15
196.5 16.375 0 1 0 0 4 5 651 54.25 0 0 0 0 14 14
207 17.25 0 0 0 6 0 6 655.5 54.625 1 0 0 0 14 15
211.5 17.625 1 0 0 6 0 7 672 56 0 2 0 0 14 16
217.5 18.125 0 1 0 6 0 7 678 56.5 1 0 1 0 14 16
229.5 19.125 0 0 1 6 0 7 688.5 57.375 1 1 1 0 14 17
232.5 19.375 0 0 0 0 5 5 697.5 58.125 0 0 0 0 15 15
241.5 20.125 0 0 0 7 0 7 702 58.5 1 0 0 0 15 16
246 20.5 1 0 0 7 0 8 712.5 59.375 1 1 0 0 15 17
720 60 0 0 1 0 15 16
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