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Bock Water heaters 199SK Leaflet

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www.bockwaterheaters.com 
110 South Dickinson Street , Madison, Wisconsin 53703 
Toll Free 800.794.2491
•
Phone 608.257.2225
●
Fax 608.257.5304
80021 Rev 11/07
G
Cold Inlet,
3/4" NPT
Hot Outlet/
Anode Rod,
3/4" NPT
Anode Rod
Aquastat
T&P Relief Valve
From Boiler, 1" NPT
To Boiler,
1" NPT
Drain Valve
F
D
C
E
B
A
30, 40 & 50SK
G
h
A
E
F
D
C
B
Cold Inlet, 1" NPT
Hot Outlet,
1-1/2" NPT
Anode Rod
Anode
Rod
T&P Relief Valve
From Boiler,
1" NPT
To Boiler,
1"NPT
Drain Valve
Aquastat
80 & 119SK
Model
Dimensions
Shipping 
Weight 
(lbs)
A
B
C
D
E
F
G
H
30SK
22”
35 3/4”
27 3/4”
19 1/2”
11 3/4”
6 1/2”
4 1/2”
N/A
180
40SK
22”
42 3/4”
34 3/4”
31 1/2”
16 3/4”
6 1/2”
4 1/2”
N/A
226
50SK
22”
48 3/4”
39 3/4”
31 1/2”
16 3/4”
6 1/2”
4 1/2”
N/A
231
80SK
24”
64 3/4”
57 1/8”
33”
19 1/4”
8”
5”
5”
297
119SK
28”
65 1/4”
57 3/4”
33 3/4”
16 1/4”
8 3/4”
5”
6 1/2”
397
FIRST HOUR RATING (gal) @ Coil Output (Btu/hr)
Model
Actual Tank 
Volume (gal)
First Draw 
(gal)
Heat Source 
Friction Loss* 
(ft. w.c.)
180° F 
8 GPM**
180° F 
10 GPM**
180° F 
12 GPM**
200° F 
8 GPM**
200° F 
10 GPM**
200° F 
12 GPM**
30SK
30
25
2
110 @ 55,000
114 @ 57,000
117 @ 59,000
132 @ 69,000
136 @ 71,000
139 @ 73,000
40SK
38
33
3
153 @ 77,000
165 @ 84,000
177 @ 92,000
183 @ 96,000
195 @ 104,000 207 @ 111,000
50SK
45
40
3
160 @ 77,000
172 @ 84,000
184 @ 92,000
190 @ 96,000
202 @ 104,000 214 @ 111,000
80SK
75
70
5
200 @ 83,000
212 @ 91,000
224 @ 98,000
233 @ 104,000 245 @ 112,000 257 @ 119,000
119SK
110
102
5
232 @ 83,000
244 @ 91,000
256 @ 98,000
265 @ 104,000 277 @ 112,000 289 @ 119,000
All data obtained through testing in accordance with GAMA INDIRECT-FIRED WATER HEATER TESTING STANDARD IWH-TS-1_MARCH 2003
* At 8 GPM
** Coil Input (temperature, flow rate). Ratings based on 77°F rise with 58°F inlet potable water.
Note: First Hour Rating = First Draw + Continuous Draw
Warning: Installation should be in accordance with all national and/or local codes.  In the absence of local codes, refer to NFPA 54 or ANSI Z.21.10.1.
Caution: The recommended maximum hot water termperature setting for normal residential use is 120°F.  Bock recommends a tempering valve or 
anti-scald valve be installed and used according to the manufacturer’s directions to prevent scalding.
Pressures (all): Working pressure, 150 psi; testing pressure, 300 psi
Standard Voltage (all):  120V, 60 Hz, 1P
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