Air-conditioning apparatus; Air-conditioning apparatus; Air-conditioning installations; Combined heating and air-conditioning apparatus; Furnaces; Heat pumps; Heating installations; Air heating furnaces; Central heating radiators; Electric furnaces for industrial purposes; Gas furnaces for commercial buildings; Gas furnaces for residential homes

Air-conditioning system installation and repair; Air conditioning apparatus installation and repair; Furnace installation and repair; Heating equipment installation; Heating equipment installation and repair; Installation and maintenance of heating systems; Installation and repair of air-conditioning apparatus; Installation and repair of furnaces; Installation and repair of heating, ventilating and air conditioning equipment; Installation and replacement service for heating, ventilating and air conditioning systems; Installation of air-conditioning apparatus; Installation of air-conditioning systems; Installation of heating and cooling apparatus; Installation of heating, ventilation and air-conditioning systems; Installation of industrial furnaces; Installation, maintenance and repair of air-conditioning apparatus; Installation, maintenance and repair of heating apparatus; Installation, maintenance and repair of heating systems; Installation, repair and maintenance of heating equipment; Maintenance and repair of heating apparatus; Maintenance and repair of heating installations; Providing information relating to the repair and maintenance of furnaces; Providing information relating to the repair or maintenance of industrial furnaces; Provision of information relating to the repair and maintenance of furnaces; Repair and maintenance of air-conditioning apparatus