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silver linear grille, lineat grid, living room, window facade
linear grille, lineat grid, office, desk, mitre, gap, window facade, angled, angled, angled
mood, living room, roll-up grille, black anodized
Trench Heaters

Zehnder
Terraline

Hydronic operation
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    The Zehnder Terraline trench heater offers an elegant alternative wherever free-standing radiators should be avoided for reasons of aesthetics or underfloor heating is not possible. All that is visible is the frame, complete with integrated decorative grille. Zehnder Terraline utilises the rising warm air to create pleasant, natural warmth. The trench heater is ideal for use where there are large areas of full height glazing.

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    Benefits

    • Aluminium and copper construction enable short response times for fast heating of rooms
    • Invisible heating power, built in to the floor
    • Built-in floor construction makes it ideal for use in front of large windows
    • Silent operation makes it suitable for different areas of application
    • Wide range of models supports versatile use
    • Hidden connection technology in the floor
    • High thermal output means rooms are heated up rapidly
    • High thermal output means that even large rooms are heated up rapidly
    • Combines with Zehnder Comfosystems for comfortable indoor ventilation
    • Powerful heat exchanger is compatible with heat pump and/or low temperature systems
    • Special solutions support a wide range of application, such as curved or angled options, or versions with cut-outs
    • The grille can be walked on and ensures the necessary stability
    • With several designs available, the decorative grille and frame make it possible to create an individual look
    • High level of thermal output also for old buildings with a high heat load
    • An alternative in old buildings where radiators should be avoided or underfloor heating is not possible
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    Technical data

    Connection to hot water central heating system

    All models
    Technical specifications for length 1000 mm
    Model H T Heat output
    75/65/20 °C 70/55/24 °C 55/45/24 °C 55/45/20 °C
    mm mm Watts Watts Watts Watts
    UN-09-17 90 170 143 98 55 67.8
    UN-09-21 90 215 199 137 78 95.3
    UN-09-25 90 255 252 176 103 125
    UN-09-34 90 340 300 209 122 148
    UN-09-42 90 420 350 244 142 173
    UN-11-17 110 170 173 118 66 81.6
    UN-11-21 110 215 218 145 79 98.7
    UN-11-25 110 255 295 201 114 140
    UN-11-34 110 340 381 264 153 186
    UN-11-42 110 420 424 294 170 207
    UN-14-17 145 170 177 120 67 82.6
    UN-14-21 145 215 231 156 87 107
    UN-14-25 145 255 338 232 132 162
    UN-14-34 145 340 501 345 197 241
    UN-14-42 145 420 613 425 245 300
    UN-19-17 190 170 200 136 76 93.9
    UN-19-21 190 215 276 185 101 126
    UN-19-25 190 255 328 226 130 159
    UN-19-34 190 340 518 353 198 244
    UN-19-42 190 420 725 495 279 344
    H = height, T = depth
    75/65/20 = Nominal heat output according to EN 442

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    +44 (0) 1276 605 800

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    +44 (0) 1276 605 800