ZEHNDER Terraline duct heater with natural convection UN-11-34/2200mm, heating capacity: 1234W, grille to be ordered separately UN 11-34/ 2200/ ALUM.NAT

Channel Heaters for Comfort and Aesthetics

The Zehnder Terraline channel heater is a discreet and efficient heating solution, ideal for modern interiors. It utilizes natural convection to ensure even heat distribution and creates a comfortable microclimate. It performs particularly well in rooms with large glazing, where it can act as a barrier against cold air descending from windows. The heater’s design allows it to be almost entirely concealed within the floor—only an elegant grille and frame remain visible, which can be matched to the interior décor.

The Terraline heater consists of a durable steel casing and a high-efficiency heat exchanger made from a copper-aluminum combination. This material pairing ensures rapid heating and efficient heat transfer. The unit is designed to operate at a maximum pressure of 10 bar and a temperature of 110°C, guaranteeing reliability and long service life. The heating output of this model, at a ΔT of 50°C, is 1234 W.

Advantages you’ll appreciate:

• Discreet design: The heater is nearly invisible when installed, preserving the aesthetic of your interior.
• Efficiency: The copper-aluminum heat exchanger ensures rapid heating and high thermal output.
• Comfort: Natural convection provides even heat distribution throughout the room.
• Versatility: Ideal for rooms with large glazing and compatible with underfloor heating systems.
• Quiet operation: No moving parts ensure silent performance.
• Customization options: A wide selection of decorative grilles (sold separately) allows you to match the heater’s appearance to your personal taste. Available in aluminum, wood, and stainless steel.
• Durable construction: The steel casing provides corrosion resistance and long-term durability.

The Terraline heater is an investment in comfort and aesthetics for your home. Its versatility makes it suitable for both new construction and retrofitting existing heating systems. Note that the decorative grille must be purchased separately—it is not included in the heater package. The frame dimensions are 340 mm wide, 2200 mm long, and 110 mm high.