CSA 4.7B-2000
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Addenda 2 to ANSI Z21.56-1998/CSA 4.7-M98 and ANSI Z21.56A-2000/CSA 4.7A-M00, Gas-Fired Pool Heaters
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Scope Details test and examination criteria for pool heaters for use with natural, manufactured and mixed gases, liquefied petroleum gases, and LP gas-air mixtures. Pool heaters are designed to heat non-potable water stored at atmospheric pressure, such as water in swimming pools, spas, hot tubs and similar applications.
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