Framework of metal for ovens; Regulating and safety accessories for water apparatus; Refrigerating installations; Heating, ventilating, and air conditioning and purification equipment (ambient); Burners, boilers and heaters; Heating boilers; Central heating radiators; Heating boilers; Solar thermal collectors [heating]; Solar thermal collectors [heating]; Stoves for heating; Heat pumps; Apparatus for heating; Heating apparatus for solid, liquid or gaseous fuels; Automatic temperature regulators [valves] for central heating radiators; Heat exchangers, not parts of machines; Solid fuel hoppers for heating boilers; Solid fuel feeding apparatus for heating boilers; Grates.;