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Twelfth lunar month of central heating

by Unknown - 12:55 on 10 February 2015

Twelfth Month (10/07/14-6/8/14)

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".

Twelvth lunar month of central heating
Total kg pellets used 150kg
Average daily kg (days in residence) 6kg
Metered kilowatt hours to central heating/hot water 337kwh
Gross kilowatt hour value of pellets 720kwh
Space heating (calculated) 183.66kwh
Efficiency (based on measured input, metered output to central heating and calculated space heating) 72%
Cost of pellets £31.5
Potential RHI subsidy £49.34

During this month, we were away for three days, so the average consumption per day has been calculated for twenty five 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, during this month some of the heating output was 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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