Cold Start Heater (LPG)
WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The cold start heater is integral to vaporizer/regulator. Cold start heater turns on when engine coolant is less than 32°F (0°C), and turns off when engine coolant reaches 50°F (10°C). Cold start heater is used to provide heat to heat exchanger in vaporizer in event engine coolant is not more than 32°F (0°C).