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Destratification Energy Savings Analysis by
Dr. Byron Jones, Ph.D., P.E., AHSRAE.
Kansas State University, 1980
1981, Revised 1984
Michigan Consolidated Gas Company

Stratified air is a natural condition normally found in residential, commercial and industrial areas. During any season, heat rises up and through the ceiling while cold air remains on the floor. Therefore, there is usually a significant difference between the temperature at your celling and the temperature at your floor. You can measure this temperature diffferential by using common thermometers. Proper installation and use of Air Destratifier generally reduces the temperature differential by 75% in most residential, commercial and industrial applications. As you can see from the chart below, the energy cost savings can be very substantial.

PERCENTAGE REDUCTION IN ANNUAL HEATlNG LOAD
RESULTING FROM LOWER SETTING OF THERMOSTAT

*Red numbers represent degrees in Farenheit.

F

1

2

3

4

5

6

7

8

9

10

70

3.74

7.41

11.02

14.56

18.03

21.42

24.75

27.99

31.16

34.26

69

3.81

7.56

11.24

14.84

18.37

21.81

25.19

28.49

31.70

34.85

68

3.90

7.72

11.46

15.13

18.71

22.23

25.65

29.00

32.27

35.46

67

3.97

7.87

11.69

15.42

19.07

22.64

26.12

29.52

32.84

36.10

66

4.06

8.04

11.92

15.72

19.44

23.06

26.60

30.07

33.46

36.76

65

4.14

8.19

12.15

16.03

19.80

23.49

27.10

30.64

34.09

37.44

64

4.22

8.36

12.40

16.34

20.19

23.95

27.64

31.24

34.74

38.13

63

4.32

8.54

12.65

16.67

20.60

24.45

28.21

31.86

35.41

38.86

62

4.41

8.71

12.91

17.02

21.04

24.97

28.87

32.49

36.09

39.61

61

4.50

8.90

13.19

17.40

21.51

25.50

29.38

33.15

36.83

40.40

60

4.60

9.11

13.51

17.81

21.99

26.05

30.00

33.85

57.59

41.20

59

4.72

9.34

13.85

18.23

22.48

26.62

30.66

34.58

38.36

 

58

4.85

9.58

14.18

18.65

22.99

27.23

31.34

35.30

 

 

57

4.97

9.80

14.50

19.06

23.52

27.84

32.01

 

 

 

56

5.08

10.03

14.83

19.52

24.06

28.45

 

 

 

 

*Results assume no internal or external heat gains. This chart is applicable to residences and commercial building where these gains are minimal.
*Source: Michigan Consolidated Gas Company
*Note: We move hot or cold air depending on the need. We move hot air off the ceiling and cold air off the floor. By doing this, it's the same effect as setting the thermostat back 10 degrees.

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