ZEHNDER Terraline duct heater with natural convection UN-11-34/1600mm, heating capacity: 834W, cover plate to be ordered separately UN 11-34/ 1600/ ALUM.NAT

The Zehnder Terraline duct heater is a discreet and efficient heating solution, ideal for spaces with large glazing. Its design, based on natural convection, ensures even heat distribution, creating a comfortable microclimate. Mounted beneath windows, it forms an invisible air curtain that minimizes heat loss and prevents drafts.

Constructed from high-quality materials – a steel casing and an aluminum-copper heat exchanger – it guarantees durability and reliable operation. The Zehnder Terraline combines functionality and aesthetics: after installation, only the elegant frame and decorative grille (sold separately) remain visible, allowing seamless integration with interior décor. The grille must be ordered separately.

This model, UN-11-34/1600mm, delivers a heating output of 834W (at ΔT=50°C). Its dimensions – frame/grille width 340 mm, length 1600 mm, and height 110 mm – enable flexible adaptation to various spaces. The robust construction supports a maximum operating pressure of 10 bar and an operating temperature of up to 110°C.

• Discreet heating system: Nearly invisible after installation, preserving interior aesthetics.
• Efficient convection: Natural airflow ensures uniform heat distribution throughout the room.
• Ideal for large glazing: Creates an air curtain that significantly reduces heat loss.
• Durable construction: Made from high-grade steel and aluminum/copper for long-term performance.
• Customizable design: Wide range of decorative grilles available to match individual interior styles.
• Quiet operation: No fan ensures silent performance.

The Zehnder Terraline heater is suitable for both residential and commercial applications – offices, retail spaces, and conference rooms. It is especially recommended for areas with extensive glazing, where conventional heating systems may prove insufficient. Multiple units can be connected in series to create customized, scalable heating systems tailored to specific needs.

Note: The decorative grille must be ordered separately. Available options include aluminum (woven or linear), wooden, and stainless steel grilles, offering maximum design flexibility. Optional J- or L-type frames (available on request) simplify installation and ensure perfect alignment with the floor.