Solar Hot Water System Panel Size

A properly sized solar panel system will raise water temperatures adequately.

Solar hot water system panel size. In the midwest and atlantic states you will need one square foot of collector per gallon of tank capacity. A typical solar hot water panel is 2 square metres and will supply 150 litres. More importantly if this panel is used in the solar hot water heaters design the system can produce about 70 of this site s daily hot water on an annual basis. Sizing ratio 1 15 8 34 x y z.

At the end of the day a good installer will look at your usage and advise you exactly what size to go for. X is your set point temperature typically 135f y is the well mains water temperature. Having said that many 4 person households who are very water efficient get by just fine with a 150 litre system with 1 panel. This particular solar water panel on average will produce 27 100 btu a day with mildly cloudy solar conditions.

So a typical 4 person family will need a system sized at 300 litres which has 2 panels. For an 80 gallon tank then you will need 53 square feet of collector. Use the solar panel sizing calculator to determine the right amount of paneling you will need to heat your pool year round. Use the formula below to do this calculation.