• 83.00 General128
• 83.10 Ventilation5
• 83.20 Heating45
• 83.25 Automatic heater5
• 83.30 Air conditioning63
• 83.40 Air conditioning (automatic)18
• 83.55 A/C compressor15
• 83.65 Refrigeration units1
• 83.70 Auxiliary/supplementary heater288
• 83.80 Fragrance system4