Burners and boilers for industrial purposes, see27.060
Heat pumps, see27.080
ICS Field
91.140.01 Installations in buildings in general
91.140.10 Central heating systems
Including burners and boilers for central heating systems
Pipelines and its parts for district heat, see23.040.07
Heating appliances, see97.100
91.140.30 Ventilation and air-conditioning systems
Including ventilation ducts
Ventilators and air-conditioners, see23.120
91.140.40 Gas supply systems
Including gas meters in buildings
91.140.50 Electricity supply systems
Including electric energy meters in buildings, emergency electrical supplies, etc.
91.140.60 Water supply systems
Including water meters in buildings
Pipelines and its parts for external water conveyance systems, see23.040.03
External water conveyance systems, see93.025
91.140.65 Water heating equipment
91.140.70 Sanitary installations
Including bidets, kitchen sinks, baths, waste chutes, etc.
91.140.80 Drainage systems
Sewage water disposal and treatment, see13.060.30
Drainage systems for rainwater, see91.060.20
External sewage systems, see93.030
91.140.90 Lifts. Escalators
91.140.99 Other installations in buildings