Hey there! Based on the search results, it looks like the Electrolux Indirect Solar Water Heater 150L and 200L models would be good options to consider. Electrolux is a trusted brand for solar water heaters. Since these are indirect models, they work by transferring heat to the water tank from solar collectors via a heat transfer fluid (usually glycol) rather than needing the panels directly attached to the tank. The 150L model is available for R14,655 and the 200L for R27,605. Let me know if you need any other details! Apologies I don't have specific information on the Kwikot model you asked about.
Based on the search results, it looks like the Electrolux Indirect Solar Water Heater 150L and 200L models would be good options for you. These work by transferring heat to the water tank from solar collectors via a heat transfer fluid, which is typically glycol. Since they are indirect models, you would need to use glycol in the system. I don't see any results specifically mentioning the Kwikot model you're looking at, but since it is also an indirect system, it likely works the same way and would require glycol. Let me know if you have any other questions!