Apparatus for disinfecting water; Apparatus for supplying water; Apparatus for filtering water; Apparatus for the supply of water for sanitary purposes; Apparatus for waste water purification; Filters for sanitary water distribution apparatus; Heating installations (water); Hot water heating installations; Hot water heaters; Industrial waste water purification plants; Installations for conditioning water; Installations for cooling drinking water; Cylinders for the heating of water; Domestic water filtering apparatus; Drinking water supply installations; Installations for water distribution; Electric water heating apparatus; Water heating installations; Water heaters for showers; Water heaters for shower baths; Water heaters; Heat exchangers for the temperature control of drinks being dispensed; Industrial high temperature heating apparatus; Instruments for temperature control in central heating installations (thermostatic valves); Temperature control apparatus (thermostatic valves) for central heating installations; Temperature control apparatus (valves) for central heating radiators; Temperature control valves (parts of water supply installations); Temperature control valves (parts of central heating installations); Heat pumps; Safety apparatus for controlling the distribution of fluid in hot water installations; Circulators (water heaters); Thermal controls (valves) for central heating radiators; Thermal fluid heaters; Hot water apparatus; Apparatus for the supply of hot water; Valves for controlling levels in tanks; Level controlling valves in tanks