Heater overview
| Heater overview | 
| 1. | 
       Combustion air fan
        | 
     |
| 2. | 
       Electric motor
        | 
     |
| 3. | 
       Heat exchanger
        | 
     |
| 4. | 
       Combustion chamber
        | 
     |
| 5. | 
       Glow plug
        | 
     |
| 6. | 
       Flame temperature sensor
        | 
     |
| 7. | 
       Engine coolant temperature sensor 1
        | 
     |
| 8. | 
       Engine coolant temperature sensor 2
        | 
     |
| 9. | 
       Control module
        | 
     |
| 10. | 
       Intake hose
        | 
     |
| 11. | 
       Silencer
        | 
     |
| 12. | 
       Fuel connection
        | 
     |
| 13. | 
       Connector B2
        | 
     |
| 14. | 
       Connector, water pump
        | 
     |
| 15. | 
       Inlet, coolant
        | 
     |
| 16. | 
       Outlet, coolant
        | 
     |
