9
Heat regulating apparatus; Boiler control instruments; Boiler control instruments; Ducts [electricity]; Metal ducts [electric]
11
Heating boilers; Heat pumps; Heating plates; Stoves for heating; Radiators [heating]; Fan heaters; Apparatus for heating; Heat generators; Heat accumulators; Electric heating cables; Electric heating fans; Radiators, electric; Heating installations [water]; Heating apparatus, electric; Heat pumps for energy processing; Flues for heating boilers; Water heaters and boilers; Gas heat generators; Gas fired heating installations; Heaters for vehicles; Oil fired boilers; Heating installations for industrial use; Heat generating apparatus; Boilers for use in heating systems; Electrical heating elements in the form of foil; Thermal radiators for the heating of buildings; Solar energy powered heating installations; Electrical heating elements in the form of cables; Hot water heaters; Accumulators; Aeration apparatus; District heating products; Solar thermal collectors [heating]; Refrigerators; Clothes dryers; Electric heaters; Tubular elements; Aluminium elements; Foil elements; Thick film elements; PTC elements; High-performance elements; Electric heating cables; Ceramic elements; Stoves; Heat-regulating products; Cassettes for fireplaces; Chimney blowers; Chimney extractors
37
Heating contractor services; Cleaning of boilers; Installation of boilers; Boiler repair services; Maintenance and repair of heating; Maintenance and repair of solid fuel boilers; Advisory services relating to the installation of solid fuel heating systems; HVAC (Heating, ventilation and air conditioning) installation, maintenance and repair; Installation of heat pumps and stoves (heating apparatus)