• 83.00 General125
• 83.10 Ventilation13
• 83.20 Heating4
• 83.25 Automatic heater2
• 83.30 Air conditioning53
• 83.40 Air conditioning (automatic)32
• 83.55 A/C compressor13
• 83.65 Refrigeration units1
• 83.70 Auxiliary/supplementary heater9
• 83.80 Fragrance system4