Parking engine heating from the battery with a remote controller. Mega-useful device in severe frosty winter conditions. The heating element is attached to the engine oil pan and connected to the battery. Then, with a remote control key fob you can turn on the heater at any time. The heater has a claimed power of 90W. It is incapable of heating the oil to high temperatures, but it will make it much more fluid in severe frosts and make it easier to start the engine after idle time.