- 39.25.1 Basic information10
- 39.25.3 Retrofitting/modification10
- 39.25.5 Stationary heater/auxiliary heating, complete4
- 39.25.11 Control unit/relay2
- 39.25.12 Sensor/switch/wiring harness2
- 39.25.13 Line/hose/valve3
- 39.25.30 Heater6
- 39.25.46 Pump/container2
- 39.25.47 Exhaust system3
- 39.25.60 Preheating/heater booster7