Does the Technotherm KS DSM come with a warranty? 10 October 2023 13:40 Yes. The manufacturer’s warranty is 15 years on the radiator body, including stones and casing, and 2 years on electronics. Related articles Do I need a smart device to use WiFi control on the Technotherm KS DSM? How do I set the time on the Technotherm KS DSM?