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Heating apparatus, Heating elements, Heating plates, Radiators [heating], Central heating radiators, Radiant heaters, Namely wall and ceiling radiators; Ceiling radiator profiles; Heating apparatus, electric; Heating installations, In particular wall, ceiling and floor heating; Coils (parts of heating and cooling installations); Steam generating installations, steam accumulators, pressure water tanks, heat accumulators, air heaters, air filters, filters; Heat exchangers, not parts of machines, heat regenerators, heat accumulators, heat pumps, Hot water apparatus, Heating installations [water], Heating boilers, feed devices for heating boilers, Connecting fittings for radiators and heating installations; Solar thermal collectors, and heating installations consisting predominantly of solar collectors and parts therefor; Ventilation and air-conditioning installations, parts for ventilation and air-conditioning installations, namely ventilation apparatus and fans, air-cooling apparatus, air-filtering installations, filters for air conditioning; Valves, valves which are parts of installations for heating, Thermostatic valves; Regulating and safety fittings for valves and for heating installations