| 摘要 |
<p>A system for heating and ventilating a dwelling comprises a heat pump 22 and insulating window shutters 1. The heat pump 22 provides heating and ventilation by delivering warm air 24 which may be dehumidified to a living room in the dwelling. The system also extracts air 28 from inside a bathroom of the dwelling thus controlling dampness. The living room may have apertures 26 to allow the warm air 24 to escape to the rest of the dwelling. The heat pump 22 may also recover heat and defrost itself using the extracted air 28. The shutter 1 may help to trap cold air between the shutter and the window and thus prevent it circulating into a room.</p> |
