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Eleventh lunar month of central heating

by Unknown - 12:50 on 10 February 2015

Eleventh Month (12/06/14-9/7/14)

If you are a newcomer to this blog, it might be best to begin by reading earlier instalments of the blog, perhaps starting from "Why we installed a Smart".

Eleventh lunar month of central heating
Total kg pellets used 149kg
Average daily kg (days in residence) 7.84kg
Metered kilowatt hours to central heating/hot water 291kwh
Gross kilowatt hour value of pellets 715.2kwh
Space heating (calculated) 158.59kwh
Efficiency (based on measured input, metered output to central heating and calculated space heating) 63%
Cost of pellets £31.29
Potential RHI subsidy £42.60

During this month, we were away for nine days, so the average consumption per day has been calculated for nineteen days for the lunar month. We used the Smart to heat our water and cook our evening meal. Normally, it was on for about one and a half hours and we had it set at a maximum output level of 3. Please note that the model which I used to calculate the space heating was developed for winter months, and thus the calculated efficiency rating for this month may be too low. However, with during this month some of the heating output is perhaps not necessary (albeit in the north of Scotland it sometimes helps to keep evening chill away), so it is not altogether misleading for a low efficiency rating to be recorded.

Please read the notes on the fifth month which explain how space heating and efficiency are calculated


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