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Common Wattage Requirements

Kilowatt-Hours to Heat Steel

Amount of Steel (lb) Temperature Rise °F
50° 100° 200° 300° 400° 500° 600°
Kilowatts to Heat in One Hour
25 0.06 0.12 0.25 0.37 0.5 0.65 0.75
50 0.12 0.25 0.5 0.75 1 1.25 1.5
100 0.25 0.5 1 1.5 2 2.5 3
150 0.37 0.75 1.5 2.25 3 3.75 4.5
200 0.5 1 2 3 4 5 6
250 0.65 1.25 2.5 3.75 5 6.25 7.5
300 0.75 1.5 3 4.5 6 7.5 9
400 1 2 4 6 8 10 12
500 1.25 2.5 5 7.5 10 12.5 15
600 1.5 3 6 9 12 15 18
700 1.75 3.5 7 10.5 14 17.5 21
800 2 4 8 12 16 20 24
900 2.25 4.5 9 13.5 18 22.5 27
1000 2.5 5 10 15 20 25 30

 

Kilowatt-Hours to Heat Oil

Amount of Oil Temperature Rise °F
Cubic Feet Gallons 50° 100° 200° 300° 400° 500°
0.5 3.74 0.3 0.5 1 2 2 3
1 7.48 0.5 1 2 3 4 6
2 14.96 1 1 2 4 6 11
3 22.25 2 3 6 9 12 16
4 29.9 2 4 8 12 16 22
5 37.4 3 4 9 15 20 25
10 74.8 5 9 18 29 40 52
15 112.5 7 14 28 44 60 77
20 149.6 9 1 37 58 80 102
25 187 11 22 46 72 100 127
30 222.5 13 27 56 86 120 151
25 252 16 31 65 100 139 176
40 299 18 36 74 115 158 201
45 336.5 20 40 84 129 178 226
50 374 22 45 93 144 197 252
55 412 25 49 102 158 217 276
60 449 27 54 112 172 236 302
65 486 29 58 121 16 255 326
70 524 32 62 130 200 275 350
75 562 34 67 140 215 294 375

 

Kilowatt-Hours to Heat Water

Amount of Oil Temperature Rise °F
Cubic Feet Gallons 20° 40° 60° 80° 100° 120° 140°
0.66 5 0.3 0.5 0.8 1.1 1.3 1.6 1.9
1.3 10 0.5 1.1 1.6 2.1 2.7 3.2 3
2 3 0.8 1.6 2.4 32 4 4 5.6
2.7 20 1.1 2.2 3.2 4.3 5.3 6.4 7.5
3.3 25 1.3 2.7 4 5.3 6.7 8 9.3
4 30 1.6 3.2 4.8 6.4 8 9.6 12
5.3 40 2.1 4 6.4 85 11 13 15
6.7 50 2.7 5.4 8 10.7 13 16 19
8 60 3.3 6.4 9.6 12.8 16 19 22
9.4 70 3.7 7.5 11.2 15 19 22 26
10.7 80 4.3 8.5 13 17 21 26 30
12 90 5 10 14.5 19 24 29 34
13.4 100 5.5 11 16 21 7 32 37
16.7 125 7 13 20 27 33 40 47
20 150 8 16 24 32 10 48 56
23.4 175 9 18 2= 37 47 56 65
26.7 200 11 21 32 43 53 64 75
33.7 250 13 27 40 53 67 80 93
40 300 16 32 47 64 80 96 112
53.4 400 2 43 64 85 107 128 149
66.8 500 27 53 80 107 133 160 187

 

Kilowatt-Hours to Heat Air

Amount of Air CFM Temperature Rise °F
50° 100° 150° 200° 250° 300° 350° 400° 450° 500° 600°
100 1.7 3.3 5 6.7 8.3 10 11.7 13.3 15 16.7 20
200 3.3 6.7 10 13.3 16.7 20 23.3 267 30 33.3 40
300 5 10 15 20 25 30 35 40 45 50 60
400 6.7 13.3 20 26.7 33.3 40 46.7 53.3 60 66.7 80
500 8.3 16.7 25 33.3 41.7 50 58.3 66.7 75 83.3 100
600 10 20 30 40 50 60 70 80 90 100 120
700 11.7 3.3 35 46.7 58.3 70 81.7 93.3 105 116.7 140
800 13.3 26.7 40 53.3 66.7 80 93.3 106.7 120 133.3 160
900 5 30 45 60 75 90 105 120 135 150 180
1000 16.7 33.3 50 66.7 83.3 100 116.7 133.3 150 166.7 200
1100 18.3 36.7 55 73.3 91 110 128.3 146.7 165 183.3 220
1200 20 40 60 80 100 120 140 160 180 200 240

News

Thermal News September 2016

Selection of the best temperature sensor element and assembly is critical to the thermal accuracy and performance of industrial equipment, analytical instrumentation, and medical devices.

Thermal News February 2016

Six years ago, Durex embarked upon a business objective to become the best engineering and manufacturing company in our industry. This meant raising the bar of our engineering and manufacturing competencies.

Thermal News November 2015

Solving thermal problems is one hallmark of what Durex brings to customers. We would like to share 3 examples of how Durex solved challenging applications.

Thermal News July 2015

Welcome! Durex’ core technologies and advanced thermal solutions provide superior performance - giving our customers advantages in their industries.

Durex Announces the SENTINEL® Molded Foam Silicone Rubber Heater

Durex Industries’ SENTINEL heaters offer the advances of improved thermal efficiency, higher process temperatures, and reduced system cost.

Announcing the UL Listing and Launch of the HALO® Temperature Controller

HALO is a patent pending integrated controller that reduces thermal system complexity and cost as compared to traditional solutions.

New Mica Foil High Temperature Heater Technology

Need uniform heat with fast response for applications up to 1112°F (600°C)?

Thermal News May 2015

Spring is in the air with new technologies, business processes, and human resources at Durex Industries. Ed Hinz, Durex Founder and CEO, recently stated that Durex continues to reinvest in development of new technologies, products, manufacturing processes

Case Studies