MC Series “Flex-Tube” Hot Water Boilers Dimensional Data
Components
Physical Data
Boiler Model #
MCH-11-9.5
MCH-11-10
MCH-12-15
MCH-13-20
MCH-14-25
MCH-15-30
MCH-16-35
MCH-17-40
MCH-18-50
MCH-19-
60
Nominal HP
9.5
10
15
20
25
30
35
40
50
60
Input (MBH)
400
420
630
840
1050
1260
1470
1680
2100
2520
Output (MBH)
330
340
52j0
690
860
1030
1210
1380
1720
2070
Ship Weight (lbs)
2200
2200
2400
2600
2800
3000
3200
3400
3800
4000
Oper Weight (lbs)
2420
2420
2630
2880
3130
3380
3630
3890
4420
4660
Water Content (Gal)
26
26
28
34
40
45
51
59
68
79
A. Casing Length (in)
39
39
42
48
54
60
66
75
84
96
B. Ove
rall Length* (in)
64
64
69
;75
81
96
107
116
125
137
C. Casing Height (in)
78
78
78
78
78
78
78
78
78
78
D. Casing Width (in)
39
39
39
39
39
39
39
39
39
39
E. Flue Diameter (in)
6
6
6
8
8
10
10
10
10
12
F. Flue Location (in)
10
10
10
11
11
12
12
12
12
13
G. Return/Supply Size (NPT) (in)
3
3
3
3
3
3
3
3
3
3
H. Drain Size (NPT) (in.)
1
1
1
1
1
1
1
1-1/4
1-1/4
1-1/4
Boiler Model #
MCH-20-60
MCH-21-72
MCH-22-84
MCH-23-100
MCH-24-110
MCH-31-120
MCH-32-125
MCH-33-150
MCH-34-175
MCH-35-200
Nominal HP
60
72
84
100
110
120
125
150
175
200
Input (MBH)
2520
3020
3530
4200
4620
5040
5250
6300
73
50
8400
Output (MBH)
2070
2480
2890
3440
3790
4130
4310
5170
6030
6890
Ship Weight (lbs)
4400
4900
5400
6000
6400
6700
7000
8000
9000
10000
Oper Weight (lbs)
4980
5580
6180
6900
7400
7700
8100
9300
10450
1160
Water Content (Gal)
70
81
93
108
120
123
131
155
176
193
A. Casing Length (in)
69
78
87
99
108
102
108
126
142
157
B. Overall Length* (in)
110
124
133
2145
154
148
160
178
194
209
C. Casing Height (in)
88
88
88
88
88
93
93
93
93
93
D. Casing Width (in)
51
51
51
51
51
56
56
56
56
56
E. Flue Diameter (in)
12
12
12
14
14
14
16
16
18
18
F. Flue Location (in)
13
13
13
14
14
14
15
15
16 ont>
16
G. Return/Supply Size (NPT) (in)
4F**
4F
4F
6F
6F
6F
6F
6F
6F
6F
H. Drain Size (NPT) (in.)
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
2
2
*Overall length is approximate and is dependent on length of actual burner used. **Indicates Flanged Connection (150# RF). #Suffix Model Number by desired max operating pressure and burner designation (e.g., MCH-12-15-50-PF-P = 15 BPH/50 psi trim/Power Flame Burner/Propane).
