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Gas Line Sizing for a Noritz Gas Water Heater
Maximum Natur
Natural Gas Delivery Capacity in Cubic Feet per Hour (0.60 Specific Gravity, 0.5" WC Pressure Drop)
Pipe
Size
10'
1/2"
174
3/4"
363
1"
684
1 1/4"
1404
1 1/2"
2103
2"
4050
2 1/2"
6455
3"
11,412
3 1/2"
16,709
4"
23,277
Contact the Gas Supplier for Btu/Cubic Ft. of the Supplied Gas. 1000 BTU/Cubic Ft. is a Typical Value
Maximum Liquified P
Liquified Petroleum (Undiluted) Delivery Capacity in Thousands of Btuh (0.5" WC Pressure Drop)
Pipe
Size
10'
1/2"
275
3/4"
567
1071
1"
1 1/4"
2205
1 1/2"
3307
2"
6221
** For reference only. Please consult gas pipe manufacturer for actual pipe capacities.
Maximum Capacity of Flex TracPipe in Cubic Feet per Hour of Natural Gas
Pipe
Size
10'
206
3/4"
1"
383
1 1/4"
614
1 1/2"
1261
2"
2934
Maximum Capacity of Flex TracPipe in Thousands of Btuh Liquified Petroleum
Pipe
Size
10'
325
3/4"
1"
605
1 1/4"
971
1 1/2"
1993
2"
4638
** For reference only. Please consult gas pipe manufacturer for actual pipe capacities.
TracPipe® is a registered trademark of Omega Flex.
Maximum Capacity for Gas Flex Connectors in Cubic Feet per Hour of Natural Gas
Pipe
Size
180
1/2"
3/4"
1"
1 1/4"
Maximum Capacity for Gas Flex Connectors in Thousands of Btuh Liquified Petroleum
Pipe
Size
288
1/2"
3/4"
1"
1 1/4"
** For reference only. Please consult gas pipe manufacturer for actual pipe capacities.
16
20'
30'
40'
119
96
82
249
200
171
470
377
323
965
775
663
1445
993
1161
2784
1913
2235
4437
3049
3563
7843
6299
5391
11,484
9222
7893
15,998
12,847
10,995
20'
30'
40'
50'
189
152
129
114
393
267
237
315
732
590
504
448
1496
1212
1039
913
2299
1858
1559
1417
4331
3465
2992
2646
R
20'
30'
40'
147
121
105
269
218
188
418
334
284
888
723
625
2078
1698
1472
R
20'
30'
40'
232
191
166
425
344
297
661
528
449
1404
1143
988
3285
2684
2327
12"
24"
150
290
581
1470
12"
24"
240
465
930
2352
Adapted from UPC 1997
Length in Feet
50'
60'
70'
73
66
61
152
138
127
286
259
239
588
532
490
880
798
734
1696
1536
1413
2703
2449
2253
4778
4329
3983
6995
6338
5831
9745
8830
8123
Length in Feet
60'
70'
80'
103
96
89
217
196
185
409
378
346
834
771
724
1275
1086
1181
1023
2394
2205
2047
1921
Length in Feet
50'
60'
70'
80'
94
86
80
75
168
153
141
132
251
227
209
194
559
509
471
440
1317
1203
1114
1042
Length in Feet
50'
60'
70'
80'
149
136
126
118
265
241
222
208
397
359
330
307
745
884
805
696
2082
1902
1761
1647
Length in Inches
36"
48"
125
106
255
215
512
442
1200
1130
Length in Inches
36"
48"
200
169
409
344
825
708
1920
1808
80'
90'
100'
56
53
50
118
111
104
222
208
197
456
428
404
641
605
683
1315
1234
1165
2096
1966
1857
3705
3476
3284
5425
5090
4808
7557
7091
6698
90'
100'
125'
150'
83
78
69
63
173
162
132
146
322
307
275
252
677
630
567
511
866
976
787
1496
1811
1606
(0.60 Specific Gravity, 0.5" WC Pressure Drop)
90'
100'
150'
71
67
55
125
118
94
181
171
137
415
393
320
983
933
762
( 0.5" WC Pressure Drop)
90'
100'
150'
112
106
87
197
186
143
286
270
217
656
621
506
1554
1475
1205
(0.60 Specific Gravity, 0.5" WC Pressure Drop)
60"
72"
93
86
197
173
397
347
960
930
( 0.5" WC Pressure Drop)
60"
72"
149
137
315
278
638
556
1536
1488
125'
44
93
174
358
536
1033
1646
2910
4261
5936
200'
55
112
213
440
675
1260
200'
48
82
116
277
661
200'
76
129
183
438
1045
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