Evaporative Coolers Average Operating Costs

EC Series Direct Evaporative Coolers average operating costs in humid climates (Cleveland, Ohio in 2003 per 8 hours). Methodology -
Electric: Total hp x 0.75 conversion factor x $0.13 kwh x 8 hours
Water: Gallons of water per hour per 1,000 cfm x $0.003 per gallon x 8 hours.

Model		Electric Cost	Water Cost	Total Cost
EC 15
Electric	8.25 hp x .75 x $.13 x 8	$6.45
Water	15 gal x $0.003 x 8		$0.36	$6.80

EC 20
Electric	10.75 hp x .75 x $.13 x 8	$8.39
Water	20 gal x $0.003 x 8		$.48	$8.87

EC 25
Electric	16.5 hp x .75 x $.13 x 8	$12.87
Water	25 gal x $0.003 x 8		$.60	$13.47

EC 30
Electric	21.5 hp x .75 x $.13 x 8	$16.77
Water	30 gal x $0.003 x 8		$.72	$17.49

EC 35
Electric	26.5 hp x .75 x $.13 x 8	$20.67
Water	35 gal x $0.003 x 8		$.84	$21.51

EC 40
Electric	31.5 hp x .75 x $.13 x 8	$24.57
Water	40 gal x $0.003 x 8		$.96	$25.53

EC 50
Electric	43 hp x .75 x $.13 x 8	$33.54
Water	50 gal x $0.003 x 8		$1.20	$34.74

EC 60
Electric	43 hp x .75 x $.13 x 8	$33.54
Water	60 gal x $0.003 x 8		$1.44	$34.98

EC 70
Electric	53 hp x .75 x $.13 x 8	$41.34
Water	70 gal x $0.003 x 8		$1.68	$43.02

EC 80
Electric	63 hp x .75 x $.13 x 8	$49.14
Water	80 gal x $0.003 x 8		$1.92	$51.06

Evaporative Coolers Average Operating Costs

EC 15

EC 20

EC 25

EC 30

EC 35

EC 40

EC 50

EC 60

EC 70

EC 80