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Ventilation device for in room outer wall, has heat exchangers with set of channels that are arranged between inner and outer walls of outer and inner pipes, respectively, and another set of channels disconnected and/or formed through slits
Ventilation device for in room outer wall, has heat exchangers with set of channels that are arranged between inner and outer walls of outer and inner pipes, respectively, and another set of channels disconnected and/or formed through slits
The device has heat exchangers with a set of channels that are arranged between an inner wall of an outer pipe and an outer wall of an inner pipe. Ventilators (4.1, 4.2) lie with motors (5.1, 5.2) in the inner pipe, and another set of channels that are required between the heat exchangers and ventilators are disconnected and/or formed through slits. The heat exchanger channels are made up of diffusion open material.
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