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Table B42. Water-heating equipment, number of buildings and floorspace, 2012

Released: May 2016

Number of buildings (thousand) Total floorspace (million square feet)
All
buildings		 Buildings with water heating Type of water-heating equipment All
buildings		 Buildings with water heating Type of water-heating equipment
  Central-
ized
system		 Distrib-
uted
system		 Both
central-
ized and
distrib-
uted
systems		 Central-
ized
system		 Distrib-
uted
system		 Both
central-
ized and
distrib-
uted
systems
All buildings 5,557 4,423 3,348 690 385 87,093 79,015 47,534 12,688 18,793
Building floorspace (square feet)                    
1,001 to 5,000 2,777 2,032 1,653 322 57 8,041 6,102 4,906 1,011 185
5,001 to 10,000 1,229 992 789 120 82 8,900 7,236 5,731 890 615
10,001 to 25,000 884 775 538 143 93 14,105 12,401 8,549 2,318 1,534
25,001 to 50,000 332 307 198 57 51 11,917 11,007 7,125 1,983 1,899
50,001 to 100,000 199 186 103 28 55 13,918 13,063 7,181 1,904 3,978
100,001 to 200,000 90 86 45 13 29 12,415 11,903 6,120 1,846 3,937
200,001 to 500,000 38 36 17 5 14 10,724 10,351 4,924 1,516 3,911
Over 500,000 8 8 4 1 3 7,074 6,951 2,998 1,220 2,734
Principal building activity                    
Education 389 332 244 51 38 12,239 11,905 7,580 1,269 3,057
Food sales 177 177 155 Q Q 1,252 1,252 883 Q Q
Food service 380 379 307 33 39 1,819 1,817 1,449 130 237
Health care 157 156 124 22 10 4,155 4,153 2,630 449 1,074
Inpatient 10 10 6 Q 2 2,374 2,374 1,419 Q 860
Outpatient 147 146 118 21 Q 1,781 1,779 1,211 354 Q
Lodging 158 158 132 7 19 5,826 5,821 4,418 369 1,034
Mercantile 602 531 342 90 99 11,330 10,960 4,705 1,492 4,763
Retail (other than mall) 438 367 270 80 17 5,439 5,070 2,932 1,013 1,125
Enclosed and strip malls 164 164 72 10 82 5,890 5,890 1,773 479 3,638
Office 1,012 943 713 160 71 15,952 15,663 8,724 2,934 4,006
Public assembly 352 317 248 41 28 5,559 5,318 3,389 514 1,415
Public order and safety 84 80 72 Q Q 1,440 1,341 1,139 Q Q
Religious worship 412 383 290 70 23 4,557 4,337 2,850 711 776
Service 619 442 347 80 Q 4,630 3,763 2,695 669 Q
Warehouse and storage 796 370 252 93 26 13,077 10,041 5,204 3,449 1,388
Other 125 98 81 Q Q 2,002 1,614 1,170 Q Q
Vacant 296 56 44 Q Q 3,256 1,031 700 Q Q
Year constructed                    
Before 1920 362 286 232 39 15 3,983 3,403 2,287 526 590
1920 to 1945 488 383 288 69 26 6,025 5,299 2,918 743 1,638
1946 to 1959 599 460 356 78 26 7,381 6,410 4,305 943 1,162
1960 to 1969 639 540 427 60 53 10,362 9,699 6,252 1,005 2,442
1970 to 1979 684 577 435 87 55 10,846 10,158 6,298 1,773 2,087
1980 to 1989 915 727 527 139 61 15,230 13,831 7,338 2,888 3,605
1990 to 1999 845 631 498 86 48 13,803 12,209 7,417 1,724 3,069
2000 to 2003 375 312 235 45 32 7,215 6,889 4,098 1,145 1,646
2004 to 2007 347 275 190 47 38 6,524 5,955 3,445 1,007 1,503
2008 to 2012 303 231 161 39 30 5,723 5,162 3,176 933 1,053
Census region and division                    
Northeast 805 671 493 123 56 15,534 14,633 9,128 2,383 3,122
New England 302 235 166 40 30 4,302 3,915 2,487 586 843
Middle Atlantic 504 436 327 83 26 11,232 10,718 6,641 1,797 2,279
Midwest 1,237 1,014 806 133 76 18,919 17,592 11,316 2,335 3,942
East North Central 735 629 490 90 49 12,742 12,082 7,606 1,671 2,804
West North Central 502 385 316 43 27 6,178 5,510 3,710 663 1,137
South 2,247 1,740 1,322 264 154 34,279 30,261 17,460 4,938 7,863
South Atlantic 1,091 856 617 160 79 17,981 16,144 8,889 3,030 4,226
East South Central 370 325 268 28 29 4,904 4,598 2,745 437 1,416
West South Central 786 560 437 76 46 11,394 9,519 5,826 1,471 2,222
West 1,267 997 728 170 99 18,360 16,529 9,631 3,032 3,866
Mountain 338 260 195 36 29 4,981 4,440 2,573 699 1,168
Pacific 929 737 533 135 69 13,379 12,089 7,058 2,333 2,698
Climate region1                    
Very cold/Cold 2,031 1,639 1,261 242 136 31,898 29,567 18,894 4,184 6,489
Mixed-humid 1,743 1,445 1,120 201 124 27,873 25,772 15,231 3,619 6,922
Mixed-dry/Hot-dry 837 635 457 124 54 12,037 10,585 6,259 2,221 2,105
Hot-humid 799 590 431 104 55 12,831 10,837 5,983 2,298 2,556
Marine 147 113 78 Q 16 2,454 2,255 1,168 366 721
Number of floors                    
One 3,836 2,862 2,179 451 231 39,809 33,591 20,177 6,094 7,321
Two 1,158 1,039 786 156 97 20,206 19,088 11,762 3,133 4,194
Three 374 344 259 58 26 8,140 7,932 5,148 1,181 1,602
Four to nine 177 166 118 23 26 13,535 13,141 7,998 1,646 3,497
Ten or more 13 12 6 2 5 5,404 5,264 2,450 635 2,179
Number of workers (main shift)                    
Fewer than 5 2,892 1,917 1,547 292 78 17,751 11,783 8,984 1,713 1,086
5 to 9 1,085 977 777 140 61 8,973 8,205 6,262 1,188 755
10 to 19 731 700 515 118 66 9,623 9,137 6,320 1,690 1,126
20 to 49 513 495 319 78 98 14,514 14,097 7,957 2,282 3,859
50 to 99 206 203 122 36 46 13,476 13,171 7,105 2,192 3,873
100 to 249 93 93 51 20 23 10,941 10,912 5,614 1,893 3,404
250 or more 37 37 17 6 14 11,815 11,711 5,292 1,730 4,689
Weekly operating hours                    
Fewer than 40 1,149 703 575 97 31 8,220 5,137 3,777 659 701
40 to 48 1,346 1,107 843 193 71 15,828 14,388 9,155 2,631 2,602
49 to 60 1,244 1,063 789 184 89 20,529 18,878 11,623 3,487 3,768
61 to 84 764 676 467 111 98 15,867 15,304 7,601 2,621 5,082
85 to 167 479 428 315 67 46 9,395 8,937 5,247 1,470 2,220
Open continuously 575 447 359 38 49 17,253 16,371 10,131 1,820 4,420
Ownership and occupancy                    
Nongovernment owned 4,781 3,791 2,851 617 323 67,550 60,645 35,837 11,091 13,717
Owner occupied 2,466 2,048 1,634 289 125 30,637 27,869 19,154 4,090 4,626
Leased to tenant(s) 1,745 1,401 1,001 251 149 26,115 23,900 12,749 4,804 6,347
Owner occupied and leased 349 316 195 75 46 8,873 8,544 3,698 2,181 2,665
Unoccupied 221 26 21 Q Q 1,925 332 237 Q Q
Government owned 776 632 497 72 62 19,543 18,370 11,697 1,596 5,076
Federal 33 33 29 Q 3 1,573 1,565 837 Q 626
State 185 146 106 22 19 5,539 5,270 3,188 746 1,336
Local 558 452 362 50 40 12,431 11,535 7,672 749 3,115
Party responsible for operation
and maintenance of energy
systems		                    
Building owner 4,715 3,706 2,841 580 285 73,702 66,462 41,135 10,474 14,852
Business owner or tenant 724 617 432 98 87 11,309 10,617 5,269 1,896 3,452
Property management 54 42 29 Q 7 1,250 1,177 600 Q 400
Other 64 57 46 Q Q 832 759 531 Q Q
Provider of direct input on energy-related equipment purchases                    
Building owner 4,876 3,830 2,933 591 306 76,271 68,848 42,370 10,971 15,507
Business owner or tenant 540 466 317 85 64 8,256 7,779 3,962 1,345 2,471
Property management 35 29 23 Q Q 880 784 378 Q Q
Other 106 98 75 Q 12 1,686 1,605 824 Q 549
Campus or complex activity                    
Not part of a campus or complex 3,683 3,084 2,369 467 248 52,275 47,942 29,176 8,061 10,705
Primary or secondary school 237 165 115 32 19 4,616 4,214 2,522 496 1,196
College or university 84 79 63 8 8 4,068 4,010 2,951 472 587
Office complex 154 141 93 33 15 3,456 3,395 1,606 691 1,097
Retail complex 258 218 139 26 53 5,159 4,921 2,014 482 2,425
Storage complex 314 52 29 22 Q 3,212 1,284 643 545 Q
Religious campus or complex 197 181 136 36 Q 1,932 1,810 1,159 344 Q
Health care complex 52 50 42 Q 7 3,362 3,314 2,278 Q 912
Lodging or resort complex 65 61 53 Q Q 1,295 1,275 1,048 Q Q
Transportation complex 35 32 27 Q (*) 554 494 193 Q 200
Government complex 104 81 71 Q 2 2,107 1,886 1,359 Q 415
Other 371 278 209 49 20 5,057 4,470 2,584 1,228 658
Renovations in buildings
constructed before 2008
(more than one may apply)		                    
Any type of renovation 2,094 1,886 1,393 297 196 42,216 40,289 22,231 6,390 11,668
Addition or annex 444 424 296 74 54 13,022 12,835 7,022 1,819 3,994
Reduction in floorspace 71 62 52 Q 5 1,753 1,715 935 Q 485
Roof replacement 987 881 654 133 94 20,917 20,189 10,907 3,186 6,095
Exterior wall replacement 194 174 130 27 17 4,230 4,144 2,261 788 1,096
Interior wall reconfiguration 889 813 563 136 114 21,340 20,777 10,449 3,418 6,911
Window replacement 560 526 352 107 66 12,265 11,984 6,237 1,983 3,765
HVAC equipment upgrade 1,101 1,019 722 173 123 26,779 26,061 13,578 4,230 8,253
Lighting upgrade 982 920 660 150 110 25,503 24,671 12,695 3,900 8,076
Electrical upgrade 747 681 487 109 85 16,160 15,675 8,123 2,398 5,154
Plumbing system upgrade 644 601 422 98 81 13,828 13,544 7,147 1,944 4,452
Insulation upgrade 382 353 248 61 44 7,607 7,331 3,785 1,176 2,370
Fire, safety, or security upgrade 616 585 407 101 77 17,196 16,864 8,874 2,709 5,281
Structural upgrade 152 144 108 20 16 3,913 3,853 2,137 518 1,198
Other 39 34 25 Q Q 848 829 321 Q Q
No renovations 3,160 2,306 1,794 354 158 39,154 33,564 22,127 5,365 6,073
Buildings constructed 2008 or later 303 231 161 39 30 5,723 5,162 3,176 933 1,053
Energy sources
(more than one may apply)		                    
Electricity 5,234 4,423 3,348 690 385 84,869 79,015 47,534 12,688 18,793
Natural gas 2,933 2,742 2,073 388 282 58,725 57,019 34,005 8,211 14,803
Fuel oil 467 411 314 52 45 20,200 19,708 10,979 2,510 6,219
District heat 48 45 30 6 8 5,964 5,822 3,596 501 1,725
District chilled water 54 51 24 19 7 4,608 4,511 2,907 450 1,154
Propane 510 466 357 72 38 7,706 7,383 4,491 1,127 1,765
Other 172 141 104 23 14 3,826 3,679 2,260 475 944
Water-heating energy sources
(more than one may apply)		                    
Electricity 2,658 2,658 1,901 508 250 42,755 42,755 21,435 9,362 11,957
Natural gas 1,758 1,758 1,367 182 209 39,523 39,523 24,806 4,088 10,629
Fuel oil 77 77 63 Q 7 1,911 1,911 1,318 Q 467
District heat 25 25 19 3 4 4,551 4,551 3,002 325 1,224
Propane 142 142 106 Q 14 1,575 1,575 1,006 Q 348
Energy end uses
(more than one may apply)		                    
Buildings with space heating 4,722 4,237 3,229 634 374 80,078 76,584 46,147 11,914 18,523
Buildings with cooling 4,461 4,097 3,093 631 374 79,294 76,414 45,554 12,198 18,662
Buildings with water heating 4,423 4,423 3,348 690 385 79,015 79,015 47,534 12,688 18,793
Buildings with cooking 1,589 1,573 1,190 176 208 38,546 38,389 21,608 4,102 12,679
Buildings with manufacturing 259 228 150 55 22 5,078 4,570 2,431 1,148 990
Buildings with electricity
generation		 410 395 292 34 69 25,642 25,280 14,045 2,858 8,378
Food preparation or serving areas
in non-food service buildings
(more than one may apply)		                    
Snack bar or concession stand 153 150 95 17 38 9,884 9,864 4,357 899 4,608
Fast food or small restaurant 173 173 97 13 63 9,787 9,778 3,500 1,131 5,147
Cafeteria or large restaurant 130 130 81 12 38 15,222 15,219 8,204 1,429 5,587
Commercial kitchen/
food preparation area		 282 282 181 41 60 16,150 16,150 8,757 1,491 5,901
Small kitchen area 736 723 577 82 64 14,054 13,926 8,428 1,284 4,213
 
1These climate regions were created by the Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE).
2In earlier CBECS publications, BAS was referred to as Energy Management and Control System (EMCS).
Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 20 buildings were sampled.
N = No cases in reporting sample.
(*) = Value rounds to zero in the units displayed.
Notes: • Because of rounding, data may not sum to totals. • See Guide to the 2012 CBECS Detailed Tables or CBECS Terminology for definition of terms used in these tables and/or comparison of differences with prior CBECS tables. Both references can be accessed from http://www.eia.gov/consumption/commercial/data/2012/
Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Form EIA-871A of the 2012 Commercial Buildings Energy Consumption Survey.