Lennox ELITE Series Installation Instructions Manual page 38

Nominal Internal
Iron Pipe Diameter
Size Inches inches
(mm) (mm)
1/2 .622
(12.7) (17.799)
3/4 .824
(19.05) (20.930)
1 1.049
(25.4) (26.645)
1-1/4 1.380
(31.75) (35.052)
1-1/2 1.610
(38.1) (40.894)
2 2.067
(50.8) (52.502) (113.83)
2-1/2 2.469
(63.5) (67.713) (181.22)
3 3.068
(76.2) (77.927) (319.98)
NOTE - Capacity given in cubic feet (m3 ) of gas per hour and based on 0.60 specific gravity gas.
Gas Pipe Capacity - ft3/hr (m3/hr)
10 20 30
(3.048) (6.096) (9,144)
172 118 95
(4.87) (3.34) (2.69)
360 247 199
(10.19) (7.000) (5.63)
678 466 374
(19.19) (13.19) (10.59)
1350 957 768
(38.22) (27.09) (22.25)
2090 1430 1150
(59.18) (40.49) (32.56)
4020 2760 2220
(78.15) (62.86)
6400 4400 3530
(124.59) (99.95)
11300 7780 6250
(220.30) (176.98)
TABLE 9
Length of Pipe - feet (m)
40 50 60
(12,192) (15.240) (18.288)
81 72 65
(2.29) (2.03) (1.84)
170 151 137
(4.81) (4.23) (3.87)
320 284 257
(9.06) (8.04) (7.27)
657 583 528
(18.60) (16.50) (14.95)
985 873 791
(27.89) (24.72) (22.39)
1900 1680 1520
(53.80) (47.57) (43.04)
3020 2680 2480
(85.51) (75.88) (70.22)
5350 4740 4290
(151.49) (134.22) (121.47)
Page 38
70 80 90
(21.336) (24.384) (27.432)
60 56 52
(1.69) (1.58) (1.47)
126 117 110
(3.56) (3.31) (3.11)
237 220 207
(6.71) (6.23) (5.86)
486 452 424
(13.76) (12.79) (12.00)
728 677 635
(20.61) (19.17) (17.98)
1400 1300 1220
(39.64) (36.81) (34.55)
2230 2080 1950
(63.14) (58.89) (55.22)
3950 3670 3450
(111.85) (103.92) (97.69)
100
(30,480)
50
(1.42)
104
(2.94)
195
(5.52)
400
(11.33)
600
(17.00)
1160
(32.844)
1840
(52.10)
3260
(92.31)