Since the system has been running I have been keeping a record of pellet usage and costs. The savings figures below are compared with the monthly cost of gas averaged over the last 5 years.
The summer savings are lower since the pellet boiler is more efficient when running at high capacity in a heating cycle. When loan repayments are factored in there is still an overall cost saving.
2011
April - £49.54
May - £12.79
June - £12.89
July - £38.97
August - £52.18
September - £53.73
October - £76.99
November - £179.96
December - £168.21
2012
January - £205.94
February - £113.12
March - £105.34
April - £39.59 Gas price increased so savings higher
May - £34.58
