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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