Runtal is the premium radiator brand of the Zehnder Group. The Zehnder Group develops, produces and sells radiators and ventilation systems. Thanks to its ground-breaking technology and high standard of service, it is one of the global market leaders within these segments. The products are marketed under various well-established brands, including the Runtal premium brand. This stands for high-quality design and a product range in which a design-driven focus, forms the foundation stone for success.