South African National Standard Fixed electric storage water heaters: SANS 151:2017

Last updated: 5 November 2017
This standard specifies the characteristics of thermostatically controlled fixed electric storage water heaters intended for indoor and outdoor domestic use and for operation on a.c. supplies at voltages not exceeding 250 V for single-phase and 480 V for other appliances.

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End uses covered
  • Building end-uses
  • Building systems
  • Water heating