• 83.00 General127
• 83.10 Ventilation5
• 83.20 Heating14
• 83.25 Automatic heater5
• 83.30 Air conditioning37
• 83.40 Air conditioning (automatic)18
• 83.55 A/C compressor13
• 83.65 Refrigeration units1
• 83.70 Auxiliary/supplementary heater126
• 83.80 Fragrance system4