# Gas Information - Maytag *TC Installation Instructions Manual

Two-stage condensing gas furnaces with fixed & variable speed blowers - 95.1 % afue

GAS FLOW RATES
TIME FOR
REVOLUTION OF GAS METER
ONE REVOLUTION
(SECONDS)
1
10
360
12
300
14
257
16
225
18
200
20
180
22
164
24
150
26
138
28
129
30
120
32
113
34
106
36
100
38
95
40
90
42
86
44
82
46
78
48
75
50
72
52
69
54
67
56
64
58
62
60
60
62
58
64
56
Nominal Pipe
Diameter (IN.)
1/2
3/4
1
1 1/4
1 1/2
Cubic Feet Per Hour Required =
NOTE: The cubic feet per hour listed in the table above must be greater than the cubic feet per hour of gas ﬂ ow required by
the furnace. To determine the cubic feet per hour of gas ﬂ ow required by the furnace, divide the input rate of the furnace by
the heating value (from gas supplier) of the gas.

## GAS INFORMATION

CUBIC FEET PER
5
10
1,800
3,600
1,500
3,000
1,286
2,571
1,125
2,250
1,000
2,000
900
1,800
818
1,636
750
1,500
692
1,385
643
1,286
600
1,200
563
1,125
529
1,059
500
1,000
474
947
450
900
429
857
409
818
391
783
375
750
360
720
346
692
333
667
321
643
310
621
300
600
290
581
281
563
Table 11. Gas Flow Rates (Cubic Feet per Hour)
GAS PIPE CAPACITIES
10
20
130
90
280
190
520
350
1,050
730
1,600
1,100
Table 12. Capacity of Black Iron Gas Pipe (cu. ft. per hour)
for Natural Gas w/ Speciﬁ c Gravity = 0.60
TIME FOR
ONE REVOLUTION
(SECONDS)
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
Length of Pipe Run (Feet)
30
40
50
75
65
55
150
130
115
285
245
215
590
500
440
890
760
670
Input To Furnace (Btu/hr)
Heating Value of Gas (Btu/Cu. Ft.)
GAS FLOW RATES
CUBIC FEET PER
REVOLUTION OF GAS METER
1
5
55
273
53
265
51
257
50
250
49
243
47
237
46
231
45
225
44
220
43
214
42
209
41
205
40
200
39
196
38
191
38
188
37
184
36
180
35
176
35
173
34
170
33
167
33
164
32
161
32
158
31
155
31
153
30
150
60
70
80
50
45
40
105
95
90
195
180
170
400
370
350
610
10
545
529
514
500
486
474
462
450
439
429
419
409
400
391
383
375
367
360
353
346
340
333
327
321
316
310
305
300
37