Showers; air-conditioning, air cooling and ventilation apparatus and instruments; bathroom heaters; desiccating units for producing dried fruits; electric radiators; hair driers; heat pumps; heating apparatus for vehicles; heating installations; hot water heaters; refrigerating appliances and installations; regulating accessories for water supply, namely, metered valves; sauna bath installations; solar thermal air systems for heating purposes; space heating apparatus; underfloor heating appar...