With Automatic Delivery, a computer algorithm calculates when the next fuel delivery will be required. The delivery requirement will then be forwarded to the delivery drivers computer, which then optimises the delivery route.

The computer algorithm uses a fuel consumption per weather degreeday factor to determine the amount of fuel used. When the computer determines the tank has reached 40 percent of capacity it calls for a delivery to be made.

Fuel consumption per weather Degreeday is affected by: size of heated area, average temperature maintained inside, exterior environment temperature, number of times doors are opened, to name a few. It is important to notify us of any change in these items as it will effect consumption.