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AS/NZS 4234:2021
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AS/NZS 4234:2021 Heated water systems - Calculation of energy consumption
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Sets out a method for evaluating the annual energy performance of water heaters using a combination of test results for component performance and mathematical models to determine the standardized annual supplementary energy use.
R00000259
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AS/NZS 4234:2021 Heated water systems - Calculation of energy consumption