Commercial Boilers for
light oil, gas, or combination gas/light oil
78
The 78 is designed for large homes, apartments, and small
commercial buildings. It is offered as a boiler-burner unit or as a boiler only for use
with approved burners. Available in individual sections, with factory-assembled sections,
or completely packaged and fire-tested.
• Pressurized for forced draft venting - no high
chimney required • Wet base design - no separate base • Short draw rods •
Rope seal • Elastomer sealing rings • Side clean out openings • Built-in
air eliminator • Provision for multiple tankless heaters • Insulated steel
jacket • Cast-iron flue collar with built-in breeching damper • Simplified
piping • Overall efficiency up to 84.4%
78 Ratings
Boiler
Number * |
Input |
Gross
Output
MBH |
H.P. |
Steam
Sq. Ft. |
Net
Water
MBH |
L |
Oil
GPH |
Gas
MBH |
| 378 |
2.4 |
346 |
278 |
8.3 |
871 |
242 |
21-1/2 |
| 478 |
3.4 |
494 |
400 |
11.9 |
1250 |
348 |
28-1/2 |
| 578 |
4.5 |
641 |
521 |
15.6 |
1629 |
453 |
35-1/2 |
| 678 |
5.57 |
789 |
643 |
19.2 |
2008 |
559 |
42-1/2 |
| 778 |
6.5 |
937 |
764 |
22.8 |
2388 |
664 |
49-1/2 |
| 878 |
7.5 |
1,084 |
886 |
26.4 |
2771 |
770 |
56-1/2 |
| 978 |
8.5 |
1,232 |
1007 |
30.1 |
3146 |
876 |
63-1/2 |
| 1078 |
9.6 |
1,379 |
1129 |
33.7 |
3529 |
982 |
70-1/2 |
| 1178 |
10.6 |
1,527 |
1250 |
37.3 |
3908 |
1087 |
77-1/2 |
| 1278 |
11.6 |
1,674 |
1372 |
41.0 |
4329 |
1193 |
84-1/2 |
• Add "B-" for boiler-burner unit;
"A-" for assembled sections; "P-" for fore-tested package;
"H-" for boiler only for use with approved burners.
88
This medium-capacity boiler is ideal for new and
replacement work in apartments, churches, offices, schools, and other commercial,
industrial, and institutional buildings. It has the same basic features as the 76 boiler.
88 Ratings
Boiler
Number * |
Input |
Gross
Output
MBH |
H.P. |
Steam
Sq. Ft. |
Net
Water
MBH |
L |
Oil
GPH |
Gas
MBH |
| 488R |
6.9 |
996 |
794 |
23.7 |
2,483 |
690 |
32-1/4" |
| 488 |
7.0 |
1,010 |
810 |
24.2 |
2,533 |
704 |
32-1/4" |
| 588 |
9.4 |
1,357 |
1,084 |
32.4 |
3,388 |
943 |
41-1/4" |
| 688 |
11.8 |
1,703 |
1,358 |
40.6 |
4,275 |
1,181 |
48-1/4" |
| 788 |
14.2 |
2,049 |
1,632 |
48.8 |
5,225 |
1,419 |
56-1/4" |
| 888 |
16.6 |
2,396 |
1,904 |
56.9 |
6,154 |
1,656 |
64-1/4 |
| 988R |
17.2 |
2,482 |
1,991 |
59.5 |
6,442 |
1,731 |
72-1/4 |
| 988 |
18.8 |
2,713 |
2,176 |
65.0 |
7,038 |
1,892 |
72-1/4" |
| 1088R |
20.0 |
2,887 |
2,304 |
68.8 |
7,454 |
2,003 |
80-1/4" |
| 1088 |
21.5 |
3,103 |
2,452 |
73.2 |
7,933 |
2,132 |
80-1/4" |
| 1188 |
23.5 |
3,392 |
2,724 |
81.4 |
8,813 |
2,369 |
88-1/4" |
| 1288 |
26.0 |
3,753 |
3,000 |
89.6 |
9,704 |
2,609 |
96-1/4" |
| 1388 |
28.5 |
4,113 |
3,270 |
97.7 |
10,579 |
2,843 |
104-1/4" |
| 1488 |
31.0 |
4,474 |
3,550 |
106.0 |
11,483 |
3,087 |
112-1/4" |
| 1588 |
33.0 |
4,763 |
3,820 |
114.1 |
12,358 |
3,322 |
120-1/4" |
| 1688R |
34.5 |
4,979 |
3,980 |
118.9 |
12,875 |
3,461 |
128-1/4" |
| 1688 |
35.5 |
5,124 |
4,090 |
122.2 |
13,229 |
3,557 |
128-1/4" |
| 1788 |
38.0 |
5,485 |
4,370 |
130.5 |
14,138 |
3,800 |
136-1/4" |
| 1888 |
40.5 |
5,845 |
4,640 |
138.6 |
15,008 |
4,035 |
144-1/4" |
• Add "B-" for boiler-burner unit;
"A-" for assembled sections; "P-" for fore-tested package;
"H-" for boiler only for use with approved burners.
|
Weil-McLain