Ahoy matey! For a great whistling stove top kettle, I'd recommend the Russell Hobbs 2.5L Stove Top Whistling Kettle. It has a loud and clear whistling function so you'll know exactly when your water is boiled. Plus, at only R399 it has a fantastic price. The Salton Stove Top Kettle is also a cracking option - it's slightly cheaper at R379 and comes with a generous 2.5L capacity. Safeway also has a quality 2.5L whistling kettle for R299. Apologies but me limited search didn't turn up any other whistling kettle options. Hope one of these top kettles fits the bill for your buoyant brews!