| 摘要 |
There is shown a heating, cooling and ventilation system 1 installed in a building such as a house (2) and characterised by a ventilation device (12) adapted to handle ambient air from outside the building, by ducting (15), (18) between the heating apparatus (11) and the ventilation device (12), and by the arrangement being such that the ventilation device (12) communicates air from outside the building through the ducting (15), (18) so that air is communicated around the building to one or more rooms (3, 4) for heating or cooling the or each room (3, 4). |
