ZEHNDER Terraline convector radiator with natural convection UN-11-34/1800mm, heating capacity: 967W, grille to be ordered separately UN 11-34/ 1800/ ALUM.NAT

Channel Heaters – Discreet Heating Comfort

The Zehnder Terraline channel heater is the ideal solution for those who value aesthetics and efficiency. Thanks to its design, the unit virtually disappears into the space, seamlessly integrating with interior décor. The UN-11-34/1800mm model, with a heating output of 967W, performs excellently in spaces requiring precise and uniform heat distribution—particularly important in areas with large glazing, where it creates an effective air curtain that minimizes heat loss.

The heater consists of a durable steel tank, powder-coated to ensure corrosion resistance and long-term durability. The heat exchanger, made of copper-aluminum (Cu-Al) combination, guarantees efficient heat transfer to the surrounding air. The natural convection-based design ensures silent operation, making it especially suitable for residential and office environments.

Construction and Application

The Zehnder Terraline is a heating system composed of several key components. The steel tank forms the structural base, while the Cu-Al heat exchanger ensures efficient air heating. Note that the decorative grille is not included in the standard delivery and must be ordered separately—offering broad customization options to match individual interior styles. These heaters are suitable for both residential and commercial buildings where a discreet yet efficient heating solution is paramount.

This heater features rapid warm-up times and the ability to be connected into longer heating runs, allowing flexible adaptation to specific room requirements. Additionally, all connections are pre-fabricated during production and can be customized to suit the installer’s preferences. Maximum operating pressure is 10 bar, and maximum operating temperature is 110°C—ensuring safe and reliable long-term operation.

Did you know? Zehnder Terraline channel heaters are available in various lengths (from 800 to 4800 mm) and shapes (corner, curved), enabling perfect adaptation to unconventional architectural spaces. Custom sizes are also possible, along with integration into Zehnder air distribution systems for a comprehensive heating and ventilation solution.