Compare the cost of heating a room using an oil fired boiler to see how much you can save using aircon. Simply enter your unit costs for oil and electric in the blue boxes, then enter your heating demand per hour and the number of hours you have your heating on per day.

A provision of 180 Watts (0.18kw) has been included to allow for the electricity used for igniting the boiler, displaying information and for running the central heating pump in a typcal oil boiler system.

Daily standing charges for electric have not been included.