Bosch Appliances 250 SXO LP, 250 SXO NG manual For LP GAS, For Natural GAS

Appliance details

FOR NATURAL GAS

Maximum Capacity of pipe in Cubic Feet of Gas per Hour for Gas Pressure of 0.5 Psig or less and a Pressure drop of 0.3 in Water Column (0.75mbar).(Based on a 0.60 Specific Gravity Gas) Btu numbers given in thousands.

Follow boxed numbers for piping just one 250 SXO (example: ¾” B.I. Natural Gas pipe for 20 ft (6.1m). will handle 190,000 btu’s (55.7 kWh). For multiple appliances combine the total btu input load and then refer to applicable chart below.

Nominal
Iron						Length of Black Iron Pipe, Feet
Pipe	Internal
Size,	Diameter
inches	inches	10	20	30	40	50	60	70	80	90	100	125	150	175	200
1/4	0.364	32	22	18	15	14	12	11	11	10	9	8	8	7	6
3/8	0.493	72	49	40	34	30	27	25	23	22	21	18	17	15	14
1/2	0.622	132	92	73	63	56	50	46	43	40	38	34	31	28	26
3/4	0.824	278	190	152	130	115	105	96	90	84	79	72	64	59	55
1	1.049	520	350	285	245	215	195	180	170	160	150	130	120	110	100
1 1/4	1.380	1050	730	590	500	440	400	370	350	320	305	275	250	225	210
1 1/2	1.610	1600	1100	890	760	670	610	560	530	490	460	410	380	350	320
2	2.067	3050	2100	1650	1450	1270	1150	1050	990	930	870	780	710	650	610

Length of Flexible Corrugated Stainless Steel Tubing (CSST), Feet

Tube
size,
inches	EHD*
	10		20	30	40		50	60
1/2	18 EHD 82		58	47	41		37	34
3/4	23 EHD 161		116	96	83		75	68
1	30 EHD	330	231	188	162		144	131
1 1/4	37 EHD 639		456	374		325	292	267

*EHD = Equivalent Hydraulic Diameter. The greater the value of EHD, the greater the gas capacity of the tubing.

FOR LP GAS

Maximum Capacity of Pipe in Thousands of BTU per Hour of Undiluted Petroleum Gases (at 11 inches Water Column Inlet Pressure) (Based on a Pressure Drop of 0.5 Inch Water Column).

* EHD = Equivalent Hydraulic Diameter. The greater the value of EHD, the greater the gas capacity of the tubing.

Nominal
Iron Pipe							Black Iron Pipe
Size,							Length of Pipe, Feet
Inches		10		20	30	40	50	60	70	80	90	100	125	150
	1/2		275	189	152	129	114	103	96	89	83	78	69	63
	3/4	567		693	315	267	237	217	196	185	173	162	146	132
	1	107		732	590	504	448	409	378	346	322	307	275	252
1 1/4		220		149	121	103	913	834	771	724	677	630	567	511
1 1/2		330		229	185	155	141	127	118	108	102	976	866	787

Length of Flexible Corrugated Stainless Steel Tubing (CSST), Feet

Tube
size
inches	EHD*
	10		20	30		40	50	60
1/2	18 EHD 129		91	74		64	58	53
3/4	23 EHD	254	183	151		131	118	107
1	30 EHD 521		365		297	256	227	207
1 1/4	37 EHD 971		661	528		449	397	359

Maximum Capacity of Semi-Rigid copper Tubing in Thousands of BTU per Hour of Undiluted Liquefied Petroleum Gases (at 11 inches Water Column Inlet Pressure).

(Based on a Pressure Drop of 0.5 Inch Water Column)

*Source National Fuel Gas Code NFPA 54, ANSI Z223.1 - No Additional Allowance is necessary for an ordinary number of fittings

							Copper
Outside					Length of Tubing, Feet
diameter
Inch		10		20	30	40	50	60	70	80	90	100
3/8		39		26	21	19	_	_	_	_	_	_
1/2		92		62	50	41	37	35	31	29	27	26
	5/8		199	131	107	90	79	72	67	62	59	55
	3/4	329		216	181	145	131	121	112	104	95	90

Fig. 12

6 720 607 440 11