X is your set point temperature typically 135f y is the well mains water temperature.
Solar hot water system panel size.
Having said that many 4 person households who are very water efficient get by just fine with a 150 litre system with 1 panel.
Using these output measurements we can determine how many square feet of collector we will need to heat a single gallon of water.
Use the solar panel sizing calculator to determine the right amount of paneling you will need to heat your pool year round.
By raising water temperature your swimming season can be extended in colder locations by as much as 100 and works year round in warmer weather.
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.
Z is the btu ft2 rating of the solar collector.
This particular solar water panel on average will produce 27 100 btu a day with mildly cloudy solar conditions.
In the midwest and atlantic states you will need one square foot of collector per gallon of tank capacity.
So a typical 4 person family will need a system sized at 300 litres which has 2 panels.
Use the formula below to do this calculation.
A typical solar hot water panel is 2 square metres and will supply 150 litres.