Table 2: Summary of annual historical consumption of NG (m3) and measurement of indoor air temperature (ºC).

Case Studies m3(historical average periods) Heating Energy Consumption Measurement Period Temperature (C°)
(a mᶾ = 8400 Kcal) (67 % of the annual consumption)
Average STD CV kWh Kwh/m2/ year Outside Inside ∆T
H H1 2370.4 154.1 6.5 15475 91.5 July - 13 July 19, 2010 3.6 19.9 16.3
H2 2606.9 271.1 13.5 17019 327.3 August 11 -August 15, 2010 7.7 21.8 14.1
H3 1178 163.6 13.9 7690 97.3 July 13-July 19, 2010 3.6 16 12.4
H4 1417.7 185.2 13.1 9255 141.3 July 31-August 6, 2010 7.4 17.9 10.5
H5 2056 205.6 10.0 13422 274.5 June 4-June 18, 2003 9.4 20.5 11.1
B 126 15 956.7 152 15.9 6245 120.1 May 1 - June 29, 2009 10.8 22.2 11.4
18 708.8 76.1 10.7 4628 120.8 May 1 - June 29, 2010 10.8 22.3 11.5
23 1150.8 101.4 8.8 7512 144.5 May 1 - June 29, 2011 10.8 23.7 12.9
374 12 99.5 12 12.1 - - May 1 - June 29, 2012 10.8 21.2 10.4
T A 1707.7 102.2 16.7 11148 125.3 - - - -
B 1538.2 115.6 13.3 10042 77.8 July 15 - July 31, 2009 6.3 20.5 14.2
C 1005.5 64.4 15.6 6564 63.1 July 15 - July 31, 2010 6.3 20.6 14.3
D 628.2 55.6 11.3 4101 87.3 July 15 - July 31, 2011 6.3 23.9 17.6
E 1310.5 95.7 13.7 8555 122.2 July 15 - July 31, 2012 6.3 22.4 16.1