I had a Zip bathroom fan heater that was probably 25 years old before it gave up the ghost. I had it replaced with a Goldair heater, which lasted just over 2 years before the draw cord ceased to function. I know I'd be covered by the Consumer Guarantees Act if I wanted it repaired (not possible!) or replaced, but I'd prefer to get a better quality heater that lasted longer, and I'm looking at Serene and Weiss heaters. Has anyone had experience with these brands? Any advice welcome!