Fuel Operated Heater (FOH)
FOH systems consist of a diesel fired burner/heat exchanger system which provides heat by combusting fuel. These systems provide heat only. The devices consume a small amount of fuel, emit some emissions. They draw diesel from the vehicle's tanks, and burn it with a continuous flame in a furnace-like combustion chamber. These systems can be combined with automatic electronic engine control start/stop functions and can monitor system operation, fuel consumption, coolant water temperature, ambient temperature, locomotive battery voltage; air pressure, oil, etc.
The following APU/GS systems are SmartWay verified for locomotives
- A.S.T. Group - 35kW, 50kW and 90kW LTP Systems (includes automatic Start/Stop capability)
http://www.ast.de/products/railway-technology,193.html
