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1
BOILER
MODEL
NO.
JC 300
JC 400
JC 500
JC 600
JC 700
JC 800
JC 900
JC1000
JC1100
JC1200
JC1300
JC1400
JC1500
JC1600
JC1700
JC1800
JC1900
JC2000
JC2100
JC2200
JC2300
JC2400
JC2500
JC2600
JC2700
JC2800
JC2900
JC3000
RATINGS
AND CAPACITIES
A.G.A.*
INPUT
Bitu Mbh
3O0
400
5O0
600
7O0
8OO
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
A.G.A.*
NET I=B=R RATINGSt
OUTPUT
Steam
Steam
Water
Btu Mbh
Sq. Ft.$ Btu Mbh
Btu Mbh
240
750
180
209
320
1000
240
278
400
1250
300
348
480
1500
360
417
560
1750
420
487
640
2000
480
557
720
2250
540
626
800
2500
600
696
880
2750
660
765
960
3000
720
835
1040
3250
780
904
1120
3500
840
974
1200
3750
900
1043
1280
4008
962
1113
1360
4283
1028
1183
1440
4563
1095
1252
1520
4838
1161
1322
1600
5117
1228
1391
1680
5392
1294
1461
1760
5671
1361
1530
1840
5942
1426
1600
1920
6213
1491
1670
2000
6471
1553
1739
2080
6729
1615
1809
2160
6988
1677
1878
2240
7246
1739
1948
2320
7504
1801
2017
2400
7763
1863
2087
FLUE OUTLET
CHIMNEY
NO. & SIZE
SIZE$$
8"
10" 12"
I.D. x Ht.
1
8"x 20'
1
10'x 20'
1
12" x 20'
2
12" x 20'
1
1
12" x 20'
2
14"x 20'
1
1
14"x 20'
2
14"x 20'
1
2
16"x 20'
3
16"x 20'
1
2
16"x 20'
1
2
18"x 20'
3
18"x 20'
4
18"x 20'
1
1
2
18"x 20'
2
2
20"x 20'
1
3
20"x 20'
4
20"x 20'
2
3
20"x 20'
3
2
22"x 20'
2
3
22"x 20'
1
4
22"x 20'
5
22"x 20'
2
4
22"x 20'
1
1
4
24"x 20'
2
4
24"x 20'
1
5
24"x 20'
6
24"x 20'
FLUE
COLLECTOR
SIZE TO
CHIMNEY
8
10
12
12
12
14
14
14
16
16
16
18
18
18
18
20
20
20
20
22
22
22
22
22
24
24
24
24
HORSE-
POWER
GROSS
OUTPUT**
7.16
9.55
11.94
14.33
16.72
19.10
21.49
23.88
26.27
28.66
31.04
33.43
35.82
38.21
40.60
42.99
45.37
47.76
50.15
52.54
54.93
57.31
59.70
62.09
64.48
66.87
69.25
71.64
PRESSURE
DROP THRU
WATER BOILERI-I-
GPM
In. Water
18.9
0.10
37.8
0.50
25.2
0.27
50.4
0.86
31.5
0.40
63.0
1.20
37.8
0.50
75.6
1.70
44.1
0.70
88.2
2.50
50.4
0.88
100.8
2.90
56.7
1.10
113.4
3.80
63.0
1.30
126.0
4.00
69.3
1.50
138.6
5.00
75.6
1.80
151.2
6.00
81.9
2.00
163.8
5.60
88.2
2.40
176.4
7.00
94.5
2.60
189.0
8.30
100.8
2.80
201.0
9.60
187.1
3.15
214.2
10.30
113.4
3.50
226.8
11.00
119.7
4.00
239.4
12.50
126.0
4.50
252.0
14.00
132.3
4.95
264.6
16.00
138.6
5.40
277.2
18.00
144.9
5.70
289.8
17.00
151.2
6.00
302.4
19.00
157.5
8.00
315.0
20.50
163.8
7.00
327.6
22.00
170.1
7.50
340.2
24.00
176.4
8.00
352.8
26.00
182.75
8.50
365.5
27.50
189.1
9.00
378.2
9.00
Ratings
are at sea level to 2,000 feet. For altitudes
above 2,000 feet, reduce all ratings 4% for each 1,000 feet above sea level
1
Ratings
based on selection
factors
recommended
by Hydronics
institute
for piping and pickup.
Net water
boiler ratings
are
based on an allowance
of 1.15, and net steam boiler ratings are based on an allowance
of 1.33. For water
applications
with
high piping and pickup requirements,
use steam rating.
1:
Ratings
in square
feet are computed
at 240 Btuh/square
toot for steam boilers.
**
Ratings
based on 33,500
Btuh per horsepower.
lt
Pressure
drop based on given flow from a single outlet and returning
to a single inlet at the opposite
end of the boiler.
:I::I: Chimney
sizes shown are one option based on a typical venting
system
as shown
in Figure 21, and sized according
to the
National
Fuel Gas Code, assuming
Type B double wall vent and vent connectors,
Other venting
system
designs
are accept-
able as shown on page 16. For further
chimney
design
and sizing
information,
consult
the National
Fuel Gas Code, ANSI
Z223.1/NFPA
54-latest
revision,
or ASHRAE-1996
HVAC Systems
and Equipment
Handbook,
Chapter
30, Chimney,
Gas
Vent, and Fireplace
Systems,
or the Standard
for Chimneys,
Fireplaces,
Vents, and Solid Fuel Burning
Appliances.
NFPA
211 -latest revision.
Follow standard
engineering
practice.
4
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