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Solar Water Heating in the Waitakere and Rotorua NOW Homes and in 3 Papakowhai Renovation Homes (2009)

Submitted by Raquel Ponte Costa on August 24, 2012

This report by Beacon Pathway evaluates the relative successes of solar water heating installations in three pilot  renovation projects in New Zealand. Each renovation project used a different SWH system, which allows Beacon Pathway to make conclusions about best practice - after efficiency levels varied significantly between 36-75% of total energy use being from renewable sources over the monitored period.

From these results, the report makes four best-practice suggestions:

  • Control of supplementary heating isimportant
  • The collector angle should latitude rather than shallow
  • The collector area should be large enough for demand required
  • Heat loss should be kept to a minimum

The report also discovers that most users of SWH in New Zealand are passive, rather than regularly monitoring systems to ensure best performance.

Author: Beacon Pathway

Year: 2009

Pages: 115

Original Source Link

Download the document here, or read it below: