Kilowatt Hours To Heat Water
Quantity of Wate
r
Temperature Rise
Cubic
Ft.
Gals
Litres
20°F
40°F
60°F
80°F
100°F
120°F
140°F
11.1°C
22.2°C
33.3°C
44.4°C
55.6°C
66.7°C
77.8°C
Kilowatts to heat in one hour
0.66
5
18.7
0.3
0.5
0.8
1.1
1.3
1.6
1.9
1.3
10
36.8
0.5
1.1
1.6
2.1
2.7
3.2
3.7
2.0
15
56.6
0.8
1.6
2.4
3.2
4.0
4.8
5.6
2.7
20
76.5
1.1
2.2
3.2
4.3
5.3
6.4
7.5
3.3
25
93.5
1.3
2.7
4.0
5.3
6.7
8.0
9.3
4.0
30
113.3
1.6
3.2
4.8
6.4
8.0
9.6
12.0
5.3
40
150.1
2.1
4.0
6.4
8.5
11.0
13.0
15.0
6.7
50
189.7
2.7
5.4
8.0
10.7
13.0
16.0
19.0
8.0
60
226.6
3.3
6.4
9.6
12.8
16.0
19.0
22.0
9.4
70
266.2
3.7
7.5
11.2
15.0
19.0
22.0
26.0
10.7
80
303.0
4.3
8.5
13.0
17.0
21.0
26.0
30.0
12.0
90
339.8
5.0
10.0
14.5
19.0
24.0
29.0
34.0
13.4
100
379.5
5.5
11.0
16.0
21.0
27.0
32.0
37.0
16.7
125
472.9
7.0
13.0
20.0
27.0
33.0
40.0
47.0
20.0
150
566.4
8.0
16.0
24.0
32.0
40.0
48.0
56.0
23.4
175
662.7
9.0
18.0
28.0
37.0
47.0
56.0
65.0
26.7
200
756.1
11.0
21.0
32.0
43.0
53.0
64.0
75.0
33.7
250
954.4
13.0
27.0
40.0
53.0
67.0
80.0
93.0
40.0
300
1132.8
16.0
32.0
47.0
64.0
80.0
96.0
112.0
53.4
400
1512.3
21.0
43.0
64.0
85.0
107.0
128.0
149.0
66.8
500
1891.8
27.0
53.0
80.0
107.0
133.0
160.0
187.0
