Gas Requirements
Gas Pipe Size Required for 1000 Btu Natural Gas — 0.64 Specific Gravity
at 7 ± 1.5 inches (17.4 ± 4 mbar, 1.74 ± 0.37 kPa) Water Column Pressure
25 feet
Gas
(7.63 m)
Appliances
Total Btu/hr
100,000
.75 (19.05)
120,000
.75 (19.05)
140,000
.75 (19.05)
160,000
.75 (19.05)
180,000
1 (25.40)
200,000
1 (25.40)
300,000
1 (25.40)
400,000
1.25 (31.75)
500,000
1.25 (31.75)
600,000
1.5 (38.10)
700,000
1.5 (38.10)
800,000
1.5 (38.10)
900,000
2 (50.80)
1,000,000
2 (50.80)
1,100,000
2 (50.80)
1,200,000
2 (50.80)
1,300,000
2 (50.80)
1,400,000
2 (50.80)
1,500,000
2 (50.80)
1,600,000
2 (50.80)
1,700,000
2 (50.80)
1,800,000
2.5 (63.50)
1,900,000
2.5 (63.50)
2,000,000
2.5 (63.50)
2,200,000
2.5 (63.50)
2,400,000
2.5 (63.50)
2,600,000
2.5 (63.50)
2,800,000
2.5 (63.50)
3,000,000
2.5 (63.50)
IMPORTANT: For L.P. Gas, correct the total Btu/hr by multiplying it by 0.6. The answer is the
equivalent Btu on the above chart.
IMPORTANT: The installation must conform with local codes or, in the absence of local codes:
with the latest edition of the "National Fuel Gas Code," ANSI Z223.1/NFPA 54 in the U.S.A.,
G
with CSA-B149.1 or Natural Gas and Propane Installation Code in Canada,
G
and Australian Gas Association/Australian L.P. Gas Association requirements in Australia.
G
46
50 feet
(15.25 m)
Based on 0.3 in. Water Column Pressure Drop for Length Given
Sizes shown in inches (mm)
.75 (19.05)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Equivalent Length
75 feet
100 feet
(22.88 m)
(30.50 m)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2.5 (63.50)
2 (50.80)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
3 (76.20)
2.5 (63.50)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3.5 (88.90)
3 (76.20)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
Table 14
125 feet
150 feet
(38.13 m)
(45.75 m)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1 (25.40)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.25 (31.75)
1.5 (38.10)
1.5 (38.10)
1.5 (38.10)
1.5 (38.10)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2 (50.80)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
2.5 (63.50)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3 (76.20)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
3.5 (88.90)
4 (101.60)
70223701