The 2008/2009 graph shows the night outside minimum temperature in red and the daily amount of gas used in kWh in blue. The light red and light blue are for the 2010/2011 season.
Notes 2009/10: Towards the end September we turned the gas on once per day in the morning . At the beginning of November we had it on twice a day in the morning and evening. During March, the day time temperature has been so high we had the central heating on during the evening only essentially returning to a once a day regime. In the middle of April we have turned the gas central heating off completely and only using it for hot water and cooking. When it has been chilly in the evenings we use our wood fire.