• 39.25.1 Basic information9
• 39.25.3 Retrofitting/modification2
• 39.25.5 Stationary heater/auxiliary heating, complete3
• 39.25.11 Control unit/relay1
• 39.25.30 Heater3
• 39.25.46 Pump/container1
• 39.25.47 Exhaust system2