Maintenance Supervisors' Alliance

Gas Water Heater Recovery Table
(Calculated at 75% Recovery Efficiency)


 

GPH Recovery At Indicated
Temperature Rise

Input
Rating
Btuh

60°

70°

80°

90°

100°

30,000

45.5

39.0

34.1

30.3

27.3

33,000

50.0

42.9

37.5

33.3

30.0

35,000

53.0

45.5

39.8

35.4

31.8

40,000

60.6

51.9

45.5

40.5

36.4

43,000

65.2

55.8

48.9

43.4

39.1

50,000

75.8

64.9

56.8

50.5

45.5

60,000

90.9

77.9

68.2

60.6

54.5

70,000

106.1

90.9

79.5

70.7

63.6

80,000

121.2

103.9

90.9

80.8

72.7

90,000

136.4

116.9

102.3

90.9

81.8

100,000

151.5

129.9

113.6

101.0

90.9

Back