Solar Pool Heating - Panel and Sizing Calculations

How many panels do I really need?

Solar Pool Heating Calculations
All Scripts and Calculations Copyright Pro-sites, Inc. 6/20/00, All rights reserved, not to be copied or used in any manner without express written permission.

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Convert Celcius to Fahrenheit

Enter Swimming Pool and Site Conditions Data:
Enter surface area of pool:	Square Feet	(Click here to find your pool's surface area.)
Enter modifier for pool conditions:		Enter the following values for: Open pool: 1.0 Screened Pool: 1.1 Shaded pool: 1.15 Screened and shaded pool: 1.25
Enter compass direction modifier:		See Chart for modifier (below).
Enter surface area of panels to be used:	Square Feet	Examples: Panel Size - 4'x8' = 32 sq.ft. Panel Size - 4'x10' = 40 sq.ft. Panel Size - 4'x12' = 48 sq.ft.
Choose a city for customized results!
Click "Submit" to get your answer.

Never use any orientation north of East or West!
Compass Orientation Modifiers (Pool Panels)
Direction	Compass Reading	Modifier
East	90 Deg.	1.25
East-South-East	111.5 Deg.	1.15
South-East	135 Deg.	1.10
South-South-East	157.5 Deg.	1.0
South	180 Deg.	1.0
South-South-West	202.5 Deg.	1.0
South-West	225 Deg.	1.10
West-South-West	247.5 Deg.	1.15
West	270	1.25