Solar Water Heating Efficiency Calculator

Sizing a solar water heating system.

Solar water heating efficiency calculator.

Solar system contractors use worksheets and computer programs to help determine system requirements and. The solar fraction varies from 0 to 1 0. California f chart has been designed to calculate solar thermal water heating contributions for built up solar systems. Series connection of more than one thermosiphons solar water heater should increase the efficiency of solar water heater up to 55 and series parallel combination of thermosiphons would perform better for industrial applications yi mei liu et al 2012.

Solar water heating calculation for built up system. Solar hot water system calculator. Sizing your solar water heating system basically involves determining the total collector area and the storage volume you ll need to meet 90 100 of your household s hot water needs during the summer. The higher the solar fraction the greater the solar contribution to water heating which reduces the energy required by the backup water heater.

The solar fraction generated is based on compliance with the 2013 title 24 building energy efficiency standards and should not be used for any other purpose. Annual energy and cost savings are calculated based on the current hot water heater fuel type fuel price and water heater efficiency level. He found that the system is a commercially viable option for solar heating energy storage. The solar fraction generated are based on compliance with the building energy efficiency standards and should not be used for any other purpose.

Typical solar factors are 0 5 0 75. Select the appropriate fuel type from the drop down menu.