EnCalcOU

EnCalcOU calculates the use and cost of heating oil, allowing the cost based on tank readings and forward prediction based on the readings and elapsed time. The results can be saved to log files. EnCalcOU copes with up to two tanks, varying tax rates and fixed charge. It also calculates the amount of CO2 generated and can record the state of the central heating system. Requires a registration code (free for personal non commercial use).