Technical information

66
Technical Helpline: 0844 871 1525
Gas rating chart
Sec
kW
(gross)
kW
(net)
17 64.57 58.17
18 60.98 54.94
19 57.77 52.05
20 54.89 49.45
21 52.27 47.09
22 49.90 44.95
23 47.73 43.00
24 45.74 41.21
25 43.91 39.56
26 42.22 38.04
27 40.66 36.63
28 39.20 35.32
29 37.85 34.10
30 36.59 32.96
31 35.41 31.90
32 34.30 30.90
33 33.23 29.97
34 32.29 29.09
35 31.36 28.25
36 30.49 27.47
37 29.67 26.73
38 28.89 26.02
39 28.15 25.36
40 27.44 24.72
41 26.77 24.12
42 26.14 23.55
43 25.53 23.00
44 24.95 22.48
45 24.39 21.98
46 23.86 21.50
47 23.36 21.04
48 22.87 20.60
49 22.40 20.18
50 21.95 19.78
52 21.11 19.02
54 20.33 18.31
56 19.60 17.66
58 18.9. 17.05
60 18.30 16.48
62 17.70 15.95
64 17.15 15.45
66 16.63 14.98
Sec
kW
(gross)
kW
(net)
68 16.14 14.54
70 15.68 14.13
74 14.83 13.36
78 14.07 12.68
82 13.39 12.06
86 12.76 11.50
90 12.20 10.99
94 11.68 10.52
98 11.20 10.09
102 10.76 9.70
106 10.36 9.33
110 9.98 8.99
114 9.63 8.67
120 9.15 8.24
130 8.44 7.61
140 7.84 7.06
150 7.32 6.59
160 6.86 6.18
170 6.46 5.82
180 6.10 5.49
190 5.78 5.20
200 5.49 4.94
210 5.23 4.71
220 4.99 4.50
230 4.77 4.30
240 4.57 4.12
250 4.39 3.96
260 4.22 3.80
270 4.07 3.66
280 3.92 3.53
290 3.79 3.41
300 3.66 3.30
310 3.54 3.19
320 3.43 3.09
330 3.33 3.0
340 3.23 2.91
350 3.14 2.83
260 3.05 2.75
370 2.97 2.67
380 2.89 2.60
390 2.81 2.54
400 2.74 2.47
Converting from ft
3
/hr to m
3
/hr: ft
3
/hr ÷ 35.3 = m
3/
hr
Converting from m
3
/hr to ft
3
/hr: m
3
/hr × 35.3 = ft
3/
hr
Gas rating chart for domestic gas meters (up to 212 ft
3
/
hr) which measures gas in ft
3
Average CV = 38.76MJ/m
3
-1040btu/ft
3
MX8013 - Technical pocket guide DL v14_post proof.indd 66 30/08/2012 14:30