C E N T R I F U G A L H E A T E R - C S A
Chief Industries, Inc. 800-359-7600 OPERATION - 416274
Page 36
Approximate firing rates for CH2025T heater with C30-25 Centrifugal fan operated on
propane with 1/4" (6.35mm) diameter orifice:
STATIC PRESSURE (INCHES OF WATER COLUMN)
1.0
2.0
3.0
4.0
PLENUM
PLENUM
PLENUM
PLENUM
FIRING
TEMP.
TEMP. FOR
TEMP.
TEMP. FOR
TEMP.
TEMP. FOR
TEMP.
TEMP. FOR
RATE
RISE
50
o
F AMBIENT
RISE
50
o
F AMBIENT
RISE
50
o
F AMBIENT
RISE
50
o
F AMBIENT
PSIG
(
o
F)
AIR (
o
F)
(
o
F)
AIR (
o
F)
(
o
F)
AIR (
o
F)
(
o
F)
AIR (
o
F)
3.0
37
87
39
89
41
91
44
94
4.0
51
101
53
103
56
106
59
109
5.0
64
114
67
127
70
120
74
124
6.0
77
127
81
131
84
134
88
138
7.0
85
135
89
139
93
143
98
148
8.0
92
142
97
147
100
150
106
156
9.0
99
149
103
153
108
158
114
164
10.0
105
155
109
159
114
164
120
170
11.0
110
160
115
165
121
171
128
178
12.0
115
165
120
170
126
176
133
183
Approximate firing rates for CH2025T heater with C30-25 Centrifugal fan operated on
natural gas with 7/16” (11.11mm) diameter orifice:
STATIC PRESSURE (INCHES OF WATER COLUMN)
1.0
2.0
3.0
4.0
PLENUM
PLENUM
PLENUM
PLENUM
FIRING
TEMP.
TEMP. FOR
TEMP.
TEMP. FOR
TEMP.
TEMP. FOR
TEMP.
TEMP. FOR
RATE
RISE
50
o
F AMBIENT
RISE
50
o
F AMBIENT
RISE
50
o
F AMBIENT
RISE
50
o
F AMBIENT
PSIG
(
o
F)
AIR (
o
F)
(
o
F)
AIR (
o
F)
(
o
F)
AIR (
o
F)
(
o
F)
AIR (
o
F)
1.0
32
82
33
83
35
85
37
87
1.5
39
89
41
91
43
93
46
96
2.0
45
95
48
98
49
99
52
102
2.5
60
110
64
114
66
116
70
120
3.0
71
121
74
124
77
127
82
132
3.5
77
127
81
131
84
134
88
138
4.0
94
144
98
148
102
152
108
158