Quick sizing chart, Dimensions – weights – Watts ETSX User Manual
Page 2
Quick Sizing Chart
Boiler Output
Finned Tube
Convectors
Cast Iron
Cast Iron
Net BTU/H
Baseboard
or Unit Heaters
Radiators
Baseboard
Suggested Selection
20,000
ETX-15
ETX-15
ETX-15
ETX-15
30,000
ETX-15
ETX-15
ETX-15
ETX-15
40,000
ETX-15
ETX-30
ETX-30
ETX-30
50,000
ETX-15
ETX-30
ETX-30
ETX-30
60,000
ETX-30
ETX-30
ETX-60
ETX-60
70,000
ETX-30
ETX-30
ETX-60
ETX-60
80,000
ETX-30
ETX-30
ETX-60
ETX-60
90,000
ETX-30
ETX-30
ETX-60
ETX-60
100,000
ETX-30
ETX-60
ETX-60
ETX-60
125,000
ETX-30
ETX-60
ETX-60
ETX-90
150,000
ETX-30
ETX-60
ETX-90
ETX-90
175,000
ETX-60
ETX-60
ETX-90
ETX-90
200,000
ETX-60
ETX-60
ETX-90
ETX-90
250,000
ETSX-30
ETSX-30
ETSX-40
ETSX-30
300,000
ETSX-30
ETSX-40
ETSX-40
ETSX-30
350,000
ETSX-30
ETSX-40
ETSX-60
ETSX-30
400,000
ETSX-30
ETSX-60
ETSX-90
ETSX-40
500,000
ETSX-40
ETSX-60
ETSX-90
ETSX-40
600,000
ETSX-40
ETSX-90
ETSX-90
ETSX-60
700,000
ETSX-60
ETSX-90
ETSX-90
ETSX-60
800,000
ETSX-60
ETSX-110
ETSX-110
ETSX-90
900,000
ETSX-60
ETSX-110
ETSX-110
ETSX-90
1,000,000
ETSX-90
ETSX-110
ETSX-110
ETSX-90
1,200,000
ETSX-90
ETSX-110
ETSX-160
ETSX-90
1,400,000
ETSX-110
ETSX-160
ETSX-160
ETSX-110
1,500,000
ETSX-110
ETSX-160
ETSX-110 (2)
ETSX-110
Note:
These recommendations are based on the average water volume of typical closed systems.
Fill pressure 12psi (83 kPa), relief valve set pressure of 30psi (207 kPa) and system temperature of 200˚F (93ºC)
Dimensions – Weights
MODEL
TANK VOL.
ACCEPT.
CONNECTION DIAMETER
HEIGHT
WEIGHT
VOL.
gal.
@12 psi
in
mm.
in
mm.
lbs.
kgs.
ETX-15
2.1
1.0
1
/
2
" MNPT
8
203 12
1
/
2
318
5.0
2.3
ETX-30
4.5
2.5
1
/
2
" MNPT
11
279
14
356
10.0 4.54
ETX-60
6.0
3.0
1
/
2
" MNPT 11
3
/
8
290 17
3
/
16
437
11.5 5.22
ETX-90
15.0
6.0
3
/
4
" MNPT
16
406 20
13
/
16
528
28.0 12.70
ETSX-30
15.0
6.0
1" FNPT
16
406 21
11
/
16
551
32.0 14.51
ETSX-40
20.0
8.0
1" FNPT
16
406 28
13
/
16
732
39.0 17.69
ETSX-60
33.0
13.3
1" FNPT
16
406 42
13
/
16
1087 57.0 28.85
ETSX-90
44.0
17.7
1
1
/
4
" FNPT
21
533 36
3
/
16
919
72.0 32.66
ETSX-110
62.0
24.9
1
1
/
4
" FNPT
21
533 47
7
/
8
1217 112.0 50.80
ETSX-160
81.0
32.6
1
1
/
4
" FNPT
21
533
62
1575 123.0 55.79
ETX
ETSX
Height
Height
Diameter
Diameter
ES-ETX/ETSX 0836
© Watts, 2008
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