Coolant heaters Advantages
System Schematic
The advantages of a Webasto water heater Up to 17,200 BTU/h (5 kW) Thermo Top Evo Automatic Altitude Adjustment Thermo Top Evo 4,900 ft (1,500 m) Up to 30,709 BTU/h (9 kW) Thermo Pro 90 Automatic Altitude Adjustment Thermo Pro 90 11,000 ft (3,353 m) Engine pre-heating Cabin heating Less emissions due to engine pre-heating Very fast heat-up phase
Quiet operation Single fuel source
1 Combustion Air Fan 2 Motor 3 Igniter / Flame Detector 4 Burner Evaporator 5 Combustion Chamber 6 Coolant Temperature Sensor
10 Heater Body 11 Heat Exchanger 12 Circulation Pump 13 Fuel Metering Pump 14 Exhaust Outlet 15 Fuel Line 16 Magnets (for Hall Sensor) 17 Combustion Air Inlet 18 Hall Sensor 19 Electronic Control Unit
7 Coolant Outlet 8 Overheat Sensor 9 Coolant Inlet
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