Collector Sizing Guide

Collector Sizing Guide

Depending on your region and size of system solar can provide between 50-80% of your domestic hot water needs. A properly sized system will provide almost all of a home's hot water in the summer months.  The following table provides a rough guide based on your location's climate and number of people.  

  • The tank sizing is the minimum suggested capacity for the solar dedicated tank, so using a larger tank is acceptable. 
  • Sizing is based on providing 90% of summer domestic hot water supply.
  • Assumes an equator pointing collector installed +/- 10o of the latitude angle. 


Apricus solar water heating solar collector sizing table


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