Released: June 2006
Next CBECS will be conducted in 2007

Table B29.  Primary Space-Heating Energy Sources, Total Floorspace for Non-Mall Buildings, 2003
  Total Floorspace (million square feet)
All
Buildings*
Buildings
with
Space
Heating
Primary Space-Heating Energy Source Used a
Electricity Natural
Gas
Fuel
Oil
District
Heat
All Buildings* ............................... 64,783 60,028 15,996 32,970 3,818 4,907
Building Floorspace
(Square Feet)
1,001 to 5,000 ................................ 6,789 5,668 1,779 2,672 484 Q
5,001 to 10,000 .............................. 6,585 5,786 1,686 3,068 428 Q
10,001 to 25,000 ............................ 11,535 10,387 3,366 5,807 536 Q
25,001 to 50,000 ............................ 8,668 8,060 2,264 4,974 300 325
50,001 to 100,000 .......................... 9,057 8,718 2,245 5,147 431 516
100,001 to 200,000 ........................ 9,064 8,710 2,011 4,489 Q 1,340
200,001 to 500,000 ........................ 7,176 6,907 1,380 3,933 Q 1,003
Over 500,000 ................................. 5,908 5,792 1,265 2,880 Q 1,352
Principal Building Activity
Education ....................................... 9,874 9,755 2,495 5,191 803 970
Food Sales ..................................... 1,255 1,131 437 568 Q N
Food Service ................................. 1,654 1,608 436 957 Q Q
Health Care .................................... 3,163 3,100 592 1,972 Q 388
  Inpatient ....................................... 1,905 1,905 Q 1,388 Q 331
  Outpatient .................................... 1,258 1,195 491 583 Q Q
Lodging .......................................... 5,096 4,994 2,122 2,040 Q Q
Retail (Other Than Mall).................. 4,317 4,075 1,199 2,470 Q Q
Office ............................................. 12,208 11,929 3,995 6,046 301 1,448
Public Assembly ............................ 3,939 3,777 672 1,813 Q 547
Public Order and Safety ................ 1,090 1,083 Q 537 Q Q
Religious Worship .......................... 3,754 3,581 796 2,305 306 Q
Service .......................................... 4,050 3,687 519 2,286 340 Q
Warehouse and Storage ............... 10,078 8,126 2,257 4,736 Q Q
Other .............................................. 1,738 1,691 Q 1,064 Q Q
Vacant ........................................... 2,567 1,491 Q 987 Q Q
Year Constructed
Before 1920 ................................... 3,769 3,667 355 2,304 564 Q
1920 to 1945 .................................. 6,871 6,236 390 3,580 1,125 1,072
1946 to 1959 .................................. 7,045 6,534 1,142 3,546 894 661
1960 to 1969 .................................. 8,101 7,510 1,455 4,564 420 783
1970 to 1979 .................................. 10,772 10,223 2,830 6,037 415 557
1980 to 1989 .................................. 10,332 9,808 4,131 4,547 Q 704
1990 to 1999 .................................. 12,360 11,254 3,892 5,933 Q 680
2000 to 2003 .................................. 5,533 4,796 1,802 2,457 Q Q
Census Region and Division
Northeast ....................................... 12,905 12,596 1,253 6,439 3,250 1,205
  New England ............................... 2,964 2,819 Q 1,061 1,161 Q
  Middle Atlantic .............................. 9,941 9,778 1,127 5,377 2,089 970
Midwest ......................................... 17,080 16,331 2,545 11,321 229 1,531
  East North Central ........................ 11,595 11,223 1,487 8,230 Q 1,319
  West North Central ...................... 5,485 5,108 1,058 3,091 Q Q
South ............................................. 23,489 20,998 9,084 9,299 232 1,614
  South Atlantic .............................. 12,258 11,012 4,968 4,175 Q 1,149
  East South Central ....................... 3,393 3,056 791 1,817 Q Q
  West South Central ...................... 7,837 6,929 3,325 3,308 N Q
West .............................................. 11,310 10,102 3,114 5,911 Q 557
  Mountain ...................................... 3,675 3,525 789 2,277 Q Q
  Pacific .......................................... 7,635 6,577 2,325 3,633 Q 362
Climate Zone: 30-Year Average
Under 2,000 CDD and --
  More than 7,000 HDD ................... 10,622 10,109 1,375 6,515 962 752
  5,500-7,000 HDD ......................... 17,335 16,720 2,603 10,640 1,211 1,638
  4,000-5,499 HDD ......................... 11,504 11,239 2,210 5,617 1,557 1,231
  Fewer than 4,000 HDD ................ 15,739 13,965 4,580 7,965 Q 883
2,000 CDD or More and --
  Fewer than 4,000 HDD ................ 9,584 7,995 5,228 2,233 Q Q
Number of Workers (main shift)
Fewer than 5 ................................. 15,492 12,182 3,385 5,890 987 Q
5 to 9 .............................................. 6,166 5,822 1,736 3,426 328 Q
10 to 19 .......................................... 7,803 7,410 2,430 3,833 Q Q
20 to 49 .......................................... 10,989 10,822 2,602 6,556 Q 611
50 to 99 .......................................... 7,934 7,650 1,834 4,614 593 460
100 to 249 ...................................... 6,871 6,766 1,692 3,748 Q 975
250 or More ................................... 9,528 9,376 2,318 4,903 Q 1,895
Weekly Operating Hours
Fewer than 40 ............................... 6,863 5,246 1,424 2,848 302 Q
40 to 48 .......................................... 11,622 10,928 3,348 5,578 1,006 486
49 to 60 .......................................... 15,723 14,763 3,940 8,015 708 1,566
61 to 84 .......................................... 10,334 10,012 2,746 5,801 651 572
85 to 167 ........................................ 7,092 6,680 1,266 3,960 359 790
Open Continuously ........................ 13,149 12,399 3,273 6,768 793 1,315
Energy Sources (more than
one may apply)
Electricity ....................................... 63,307 59,991 15,996 32,963 3,818 4,907
Natural Gas .................................... 43,468 42,974 6,162 32,970 1,588 2,117
Fuel Oil ........................................... 15,157 14,942 3,079 6,258 3,818 1,490
District Heat ................................... 5,443 5,378 Q Q N 4,907
District Chilled Water ...................... 2,853 2,734 Q 339 Q 2,165
Propane ......................................... 7,076 6,790 1,323 1,947 930 Q
Other .............................................. 1,401 1,399 Q 713 Q Q
Energy End Uses (more than
one may apply)
Buildings with Space Heating ........ 60,028 60,028 15,996 32,970 3,818 4,907
Buildings with Cooling .................... 56,940 55,188 15,562 30,808 2,836 4,147
Buildings with Water Heating ......... 56,478 55,154 14,429 31,026 3,539 4,095
Buildings with Cooking ................... 22,237 21,725 5,109 12,430 1,892 1,623
Buildings with Manufacturing ........ 3,138 3,072 515 1,954 Q Q
Buildings with Electricity
 Generation .................................... 12,821 12,635 3,131 7,077 316 1,817
Percent of Floorspace Heated
Not Heated ..................................... 4,756 N N N N N
1 to 50 ............................................ 6,850 6,850 2,890 3,029 565 Q
51 to 99 .......................................... 8,107 8,107 2,164 4,707 459 574
100 ................................................. 45,071 45,071 10,943 25,233 2,793 4,307
Heating Equipment (more
than one may apply)
Heat Pumps .................................... 8,814 8,814 4,812 3,430 Q 388
  Packaged Heat Pumps ................. 5,442 5,442 3,056 2,092 Q Q
  Split-System Heat Pumps ............. 2,581 2,581 1,343 1,014 N Q
  Individual Room Heat Pumps ........ 2,691 2,691 1,286 1,173 Q Q
Furnaces ....................................... 19,615 19,615 3,655 13,476 1,153 Q
Individual Space Heaters ............... 12,545 12,545 3,736 6,907 739 533
District Heat ................................... 5,166 5,166 Q Q N 4,875
Boilers ............................................ 20,423 20,423 2,115 15,138 2,714 Q
Packaged Heating Units ................. 18,021 18,021 6,767 10,115 Q 466
Other .............................................. 3,262 3,262 1,286 1,275 Q Q
See "Guide to the Tables" or "Glossary" for further explanations of the terms used in this table. Both can be accessed from the CBECS web site - http://www.eia.gov/consumption/commercial/.
 * Figures in this table do not include enclosed malls and strip malls. Mall buildings add an estimated 213 thousand buildings comprising 6.9 billion square feet.
a  Additionally, buildings comprising 1,955 million square feet used propane; buildings comprising 382 million square feet used wood, coal or some other energy source; and no responding buildings in the sample used solar as a primary space-heating energy source.
Q=Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.
N=No responding cases in sample.
Note: Due to rounding, data may not sum to totals.
Source: Energy Information Administration, Office of Energy Markets and End Use, Form EIA-871A of the 2003 Commercial Buildings Energy Consumption Survey.