With these ceramic humidifiers you will experience dried out heater air. Unglazed outside and inside surfaces provide a larger evaporation surface than glazed vessels. Manufactured in Westerwald out of clay from the region, the waterproof vessels are fired at 1050° C. The gradually arched vessels are suitable not only for tubular heaters, but also for panel radiators. The galvanised wire hooks can be bent after heating into the required shape.