| 摘要 |
<p>A building comprising at least two rooms, a heating or cooling pipe extending from a first one of the rooms to a second one of the rooms, a ventilating device being arranged in each room in the vicinity of said pipe, the ventilating device being adapted to cause a flow of air across the pipe, a control system for controlling operation of each of the ventilating devices, so as to vary the rate of heat transfer from the pipe to its surroundings by variation of the air flow rate of said air flow. A system for varying the temperature in at least two rooms of the building and a method for controlling the rate of heat transfer from a cooling or heating pipe in the building.
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