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 35
Approximate firing rates for CH2025T heater with C30-20 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
44
94
46
96
49
99
53
103
4.0
60
110
63
113
67
117
72
122
5.0
75
125
79
129
84
134
90
140
6.0
90
140
95
145
100
150
107
157
7.0
100
150
105
155
111
161
119
169
8.0
108
158
114
164
120
170
129
179
9.0
116
166
122
172
129
179
138
188
10.0
123
173
129
179
136
186
146
196
11.0
129
179
136
186
144
194
155
205
12.0
135
185
142
192
150
200
161
211
Approximate firing rates for CH2025T heater with C30-20 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
37
87
39
89
41
91
44
94
1.5
46
96
48
98
51
101
55
105
2.0
53
103
56
106
59
109
63
113
2.5
71
121
75
125
79
129
85
135
3.0
83
133
87
137
92
142
99
149
3.5
90
140
95
145
100
150
107
157
4.0
110
160
116
166
122
162
131
181