Model
No.
MBTUH
†
Dimensions (in.)
Input
Output
Width
Overall Height
Depth
Water
Conn.
Flue
Dia.
Indoor
Outdoor
133
136
112
14-1/4
45
38-1/2
24-1/8
1-1/4
6
181/182
181
148
18-1/4 62-5/8
40
26-1/2
1-1/2
6
260/261
264
216
22-3/8 62-7/8
40
26-1/2
1-1/2
7
330/331
334
274
25-3/4 63-3/4
40
26-1/2
1-1/2
8
400/401 399
‡
327
‡
29-1/4 65-3/8
40
26-1/2
1-1/2
9
Models 133, 181-401
Model
No.
MBTUH
†
Dimensions (in.)
Input
Output
Width
Overall Height
Depth
Water
Conn.
Flue
Dia.
Indoor
Outdoor
514
512
419
32-3/4
57
44-1/8
29-1/2
2
10
624
627
514
37-1/2
57
44-1/8
29-1/2
2
12
724
726
595
41-5/8
57
44-1/8
29-1/2
2
12
824
825
677
45-3/4
57
44-1/8
29-1/2
2
14
Model
No.
MBTUH
†
Dimensions (in.)
Input
Output
Width
Overall
Height
Depth
Water
Conn.
‡
Flue
Dia.
2100
2100
1722
61
68-1/4
54-3/4
3
24
2500
2499
2049
70
68-1/4
54-3/4
3
26
3001
3000
2460
81-1/8
68-1/4
54-3/4
3
28
3500
3500
2870
92-1/2
68-1/4
54-3/4
3
30
4001
4000
3280
103-3/4
68-1/4
54-3/4
3
32
† Natural gas and propane
‡ For 2-stage Model 401 (low NOx) units, derate 5%
Models 514-824
† For natural gas units; For propane units, use .94 multiplier
† Natural gas and propane
‡ 4” on single-pass boilers (Type H)
Model
No.
MBTUH
†
Dimensions (in.)
Input
Output
Width
Overall
Height
Depth
Water
Conn.
‡
Flue
Dia.
Outdoor
926
926
759
52-3/8
46-3/4
32-1/2
2-1/2
N/A
1083
1083
888
59-1/4
46-3/4
32-1/2
2-1/2
N/A
1178
1178
966
63-5/8
46-3/4
32-1/2
2-1/2
N/A
1287
1287
1055
68-5/8
46-3/4
32-1/2
2-1/2
N/A
1414
1413
1159
74-7/8
46-3/4
32-1/2
2-1/2
N/A
1571
1570
1287
81-1/8
46-3/4
32-1/2
2-1/2
N/A
1758
1758
1442
89-3/8
46-3/4
32-1/2
2-1/2
N/A
Indoor
962
962
789
52-3/8
76-1/8
32-1/2
2-1/2
14
1125
1125
922
59-1/4
78-1/8
32-1/2
2-1/2
16
1223
1226
1002
63-5/8
78-1/8
32-1/2
2-1/2
16
1336
1337
1096
68-5/8
80-1/8
32-1/2
2-1/2
18
1468
1467
1203
74-7/8
80-1/8
32-1/2
2-1/2
18
1631
1630
1337
81-1/8
80-1/8
32-1/2
2-1/2
18
1826
1826
1497
89-3/8
80-1/8
32-1/2
2-1/2
20
† For natural gas units; For propane units, use .92 multiplier for indoor, .955 multiplier for outdoor
‡ 3”NPT on single-pass boilers (Type H)
Models 926-1826
Models 2100-4001
Catalog No.: 1000.18A Effective: 05-01-06 Replaces: 01-01-06
Raypak Inc., 2151 Eastman Ave., Oxnard, CA 93030
(805) 278-5300 Fax (800) 872-9725
MODEL INFORMATION
Indoor model shown
Outdoor model shown
Indoor model shown
Outdoor model shown
Indoor model only