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Home » Solar Basics » Collector Sizing Guide

Collector Sizing Guide

Depending on your region and size of system solar can provide between 50-90% 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

 

Additional guides for whole countries with climate colour coded map:

 

Apricus AP Solar Collector Sizing Map for USA

USA

Apricus solar collector sizing map guide for Russia

Russia

   

 

To understand more about collector efficiency, click here

 
 
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