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ISO 9459-4:2013

Solar heating — Domestic water heating systems — Part 4: System performance characterization by means of component tests and computer simulation

Standard Details

ISO 9459-4:2013 specifies a method of evaluating the annual energy performance of solar water heaters using a combination of test results for component performance and a mathematical model to determine an annual load cycle task performance under specified weather and load conditions. The procedure is applicable to solar water heaters with integral backup or preheating into a conventional storage or instantaneous water heater and to integral collector storage water heaters.

System operating requirements specified in ISO 9459-4:2013 are for the purpose of determining an annual performance rating for domestic water heaters. There are no product design or operation requirements in ISO 9459-4:2013.

General Information

Status : Published
Standard Type: Main
Document No: ISO 9459-4:2013
Document Year: 2013
Pages: 70
Edition: 1
  • Section Volume:
  • ISO/TC 180/SC 4. Systems - Thermal performance, reliability and durability
  • ICS:
  • 27.160 Solar energy engineering
  • 97.100.99 Heaters using other sources of energy

Life Cycle

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ISO 9459-4:2013
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