主权项 |
1. An air-treatment apparatus for use with a building having a building air-duct circuit, and the air-treatment apparatus comprising:
an air-handler assembly being configured to urge flow of heat along the building air-duct circuit of the building; and a vapour-expansion cycle assembly being configured to receive, at least in part, heat from the air-handler assembly, and also being configured to circulate, at least in part, a refrigerant in response to the refrigerant receiving, at least in part, the heat from the air-handler assembly in such a way that the heat, in use, urges the refrigerant to circulate, and the refrigerant that circulates is used, at least in part, to generate alternating-current electricity. |