Specs
Std./ Opt. Equipment
KW Selection Chart
Dimensions
Submittal Drawing
Ordering Info
Submittal Specs
Operating Manual
Back to SE Intro
KW Selection Chart

Standard
Rating
KW

BTU/HR

GPH
Recover
at 100oF
Rise

  Amperage Ratings At Various Voltages

Single Phase

Three Phase

208V

240V

480V

208V

240V

380V

415V

480V

3

10,236

12

14

13

6

8

7

5

4

4

4

13,648

16

19

17

8

11

10

6

6

5

6

20,472

25

29

25

13

17

15

9

8

7

8

27,296

33

39

33

17

22

19

12

11

10

10

34,120

41

48

42

21

28

24

15

14

12

12

40,944

49

58

50

25

33

29

18

17

15

15

51,180

62

72

63

31

42

36

23

21

18

18

61,416

74

87

75

38

50

43

27

25

22

20

68,240

82

96

83

42

56

48

30

28

24

24

81,888

98

115

100

50

67

58

37

33

29

30

102,360

123

144

125

63

83

72

46

42

36

36

122,832

148

173

150

75

100

87

55

50

43

40

136,480

164

192

167

83

111

96

61

56

48

45

153,540

185

216

188

94

125

108

69

63

54

50

170,600

205

240

208

104

139

120

76

70

60

54

184,248

221

260

225

113

150

130

82

75

65

58

197,896

238

279

242

121

161

140

88

81

70

Notes:

  1. The KW selections above are shown for convenience. A full selection of KW ratings from 1 to 58 KW is available by simply entering the desired KW into the model number.
  2. Units 45 KW and over are supplied with 11/2" Male NPT inlet/outlet connections and immersion hi-limit.

Formulas To Solve For:

Recovery

GPH x_________oF DT x 0.00244 = KW
KW x 410 
÷ GPH = __________ oF DT
KW x 410 
÷  oF DT =__________ GPH
Note: 1 KW will heat 4.1 GPH at a 100oF DT

Electrical

KW x 1000  ÷ 1.73 = Amps 3 F
   Volts

KW x 1000  = Amps 1 F
   Volts

Metric Conversion

Liters x 0.2641 = Gallons
Gallons x 3.79 = Liters
Gallons x 0.003785 = m 3
m3 x 264.2 = Gallons
1
oC DT = 1.8oF DT
oF = (oC x 1.8) + 32
oC = (oF - 32) x 0.556
psi x 0.06896 = Bar
Bar x 14.5 = psi
psi x 6.86 = kPa
kPa x 0.1456 = psi
Lbs x 0.4536 = Kg
Kg x 2.2 = Lbs
Watts/Sq.Cm. x 6.4 = Watts/Sq.In.
Watts/Sq.In. x 0.155 = Watts/Sq.Cm.

 

Hot Water Heaters Home | Hot Water Heaters Selection Guide | Rep Listing | Contact Hubbell Heaters

Low Capacity Electric Water Heaters | High Capacity Electric Water Heaters | Special Purpose Water Heaters | Steam Fired Water Heaters | Indirect / Direct Fired Water Heaters | Heating Elements & Coils

Hubbell HeaterswThe Electric Heater CompanywP.O.Box 288 wStratford, CT 06615-0288
Phone: (203) 378-2659
wFax:(203) 378-3593wEmail: info@hubbellheaters.com