Table 12 – Primary fuel types for buildings with space heating by primary activity, building size and number of floors (floor space), 2014
  Total
space heating
Buildings using
electricity
Buildings using
natural gas
millions
of m2
QI millions
of m2
QI Share millions
of m2
QI Share
Primary activity
Office buildings (non-medical) 278.2 A 83.7 A 30.1% 159.4 A 57.3%
Medical office buildings 15.5 A 3.2 A 20.8% 9.2 A 59.6%
Elementary and/or secondary schools 70.6 A 7.4 A 10.5% 56.8 A 80.4%
Assisted daily/residential care facilities 19.6 A 5.4 A 27.3% 13.3 A 67.8%
Warehouses 89.0 A 23.3 B 26.2% 64.5 A 72.5%
Hotels, motels or lodges 17.4 A 9.5 A 55.0% 7.4 A 42.6%
Hospitals 14.8 A 0.5 C 3.1% 11.4 A 77.1%
Food and beverage stores 15.9 C 5.1 B 32.2% 6.6 A 41.6%
Non-food retail stores 82.9 B 14.9 A 18.0% 67.8 C 81.7%
Other activity or function* 176.7 A 47.4 A 26.8% 113.2 A 64.1%
Building size  
5,000 square feet or less (465 square metres or less) 51.6 A 18.0 A 35.0% 28.8 A 55.8%
5,001 to 10,000 square feet (466 to 929 square metres) 57.4 A 14.1 A 24.6% 38.9 A 67.7%
10,001 to 50,000 square feet (930 to 4,645 square metres) 241.4 A 75.2 A 31.2% 156.4 A 64.8%
50,001 to 200,000 square feet (4,646 to 18,580 square metres) 239.8 A 56.0 A 23.3% 174.6 A 72.8%
Over 200,000 square feet (over 18,580 square metres) 190.3 A 37.0 B 19.4% 110.9 A 58.3%
Number of floors  
1 206.5 A 48.4 A 23.5% 140.1 A 67.8%
2 230.4 A 71.4 A 31.0% 153.7 A 66.7%
3 101.1 A 25.3 A 25.0% 71.7 A 70.9%
4 to 9 131.3 A 33.0 B 25.1% 82.3 A 62.7%
10 or more 111.3 A 22.3 C 20.0% 61.8 B 55.6%

Footnotes:

*"Other activity or function" includes all other commercial/institutional buildings.

Legend:

Quality indicators (QI) classify each estimate according to its quality as follows: A–20% or less, B–between 20% and 30%, C–between 30% and 40%, and F–more than 40%.