EXERGY 21

Domestic boilers; freezers; radiators; steam boilers, other than parts of machines; air conditioners; apparatus for space heating; water heaters; hot-water heating apparatus; heat regenerators; air cooling apparatus; radiators [for industrial air-conditioning purposes]; combination apparatus for cooling and freezing; refrigerating apparatus and machines; heat sinks for use in cooling apparatus; air-conditioning apparatus; heat exchangers, other than parts of machines; electric space cooling apparatus for household purposes; heating and air conditioning apparatus; solar powered heating and air conditioning apparatus; heat pumps