FireLogs - Gas Line Sizing Information

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FireLogs Home >> Products >> Vented Gas Logs >> Gas Line Sizing Information

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Gas Pipe Sizing Chart
For Gas Logs

How to read chart: Numbers across top of chart from 10 to 200 is length of gas line in feet.
                               Numbers up and down on left side is the pipe diameter in inches.
                               Numbers inside the table is the maximum BTU in thousands for
                                       the given length of gas line.
                                I.D. = Inside Diameter
                                O.D. = Outside Diameter

Iron Pipe - Natural Gas
Size		Length Of Gas Line In Feet
I.D.	I.D.	10	20	30	40	50	60	70	80	90	100	125	150	175	200
1/4"	.364"	43	29	24	20	18	16	15	14	13	12	11	10	9	9
3/8"	.493"	95	65	52	45	40	36	33	31	29	27	24	22	20	19
1/2"	.622"	175	120	97	82	73	66	61	57	53	50	44	40	37	35
3/4"	.824"	360	250	200	170	151	138	125	118	110	103	93	84	77	72
Copper Tubing - Natural Gas
O.D.	I.D.	10	20	30	40	50	60	70	80	90	100	125	150	175	200
3/8"	1/4"	20	14	11	10	9	8	7	7	6	6	5	5	4	4
1/2"	3/8"	42	29	23	20	18	16	15	14	13	12	11	10	9	8
5/8"	1/2"	88	59	47	40	36	33	30	28	26	25	22	20	18	17
3/4"	5/8"	150	103	83	71	63	57	52	49	46	43	38	35	32	30
7/8"	3/4"	212	146	117	100	89	81	74	69	65	61	54	49	45	42
Iron Pipe - Propane (LP) Gas
Size		Length Of Gas Line In Feet
I.D.	I.D.	10	20	30	40	50	60	70	80	90	100	125	150	175	200
1/2"	.622"	275	189	152	129	114	103	96	89	83	78	69	63	-	-
3/4"	.824"	587	393	315	267	237	217	196	185	173	162	146	132	-	-
Copper Tubing - propane (LP) Gas
O.D.	I.D.	10	20	30	40	50	60	70	80	90	100	125	150	175	200
3/8"	1/4"	39	26	21	19	-	-	-	-	-	-	-	-	-	-
1/2"	3/8"	92	62	50	41	37	35	31	29	27	26	-	-	-	-
5/8"	1/2"	199	131	107	90	79	72	67	62	59	55	-	-	-	-
3/4"	5/8"	329	216	181	145	131	121	112	104	95	90	-	-	-	-
7/8"	3/4"	501	346	277	233	198	187	164	155	146	138	-	-	-	-

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