9
Energy control devices; Apparatus for improving power efficiency
11
Heating apparatus; Heating installations; Industrial heating installations; Solar energy powered heating installations; Closed circuit heating installations; Thermal storage instruments [solar energy] for heating; Thermal storage instruments [solar energy] for heating; Heating, ventilating, and air conditioning and purification equipment (ambient); Electric heaters; Convectors [radiators]; Portable electric heaters; Domestic radiators; Radiators [for industrial air-conditioning purposes]; Surface heaters; Heating surfaces
37
Heating contractor services; Heating equipment installation and repair, Repair of air conditioning apparatus and Repair of alarms; Heating equipment installation, maintenance and repair; HVAC (Heating, ventilation and air conditioning) installation, maintenance and repair; Heating equipment installation and repair; Installation of apparatus for heating; Heating equipment installation and repair; Maintenance and repair of heating; Heating equipment installation and repair; Maintenance and repair of heating; Retrofitting of heating installations in buildings; Retrofitting of heating, ventilating and air conditioning installations in buildings; Maintenance and repair of solar heating installations
40
Processing and transforming energy
42
Product research and development; Development of industrial processes; Services for the development of methods of testing; Development of industrial processes; Technical consultancy in the field of energy conservation and efficiency; Certification services for the energy efficiency of buildings