Table B39. Heating Equipment, Floorspace for Non-Mall Buildings, 2003
	Total Floorspace (million square feet)
	All Buildings*	Heated Buildings	Heating Equipment (more than one may apply)
	All Buildings*	Heated Buildings	Heat Pumps	Furnaces	Individual Space Heaters	District Heat	Boilers	Packaged Heating Units	Other

All Buildings* ...............................	64,783	60,028	8,814	19,615	12,545	5,166	20,423	18,021	3,262

Building Floorspace
(Square Feet)
1,001 to 5,000 ................................	6,789	5,668	685	2,902	1,047	Q	461	1,159	330
5,001 to 10,000 ..............................	6,585	5,786	462	2,891	1,282	Q	773	1,599	Q
10,001 to 25,000 ............................	11,535	10,387	1,400	4,653	2,129	289	2,164	2,765	456
25,001 to 50,000 ............................	8,668	8,060	1,150	2,761	1,748	325	2,829	2,449	419
50,001 to 100,000 ..........................	9,057	8,718	1,524	2,086	1,819	549	3,497	3,328	450
100,001 to 200,000 ........................	9,064	8,710	1,245	1,974	1,625	1,365	4,283	2,797	Q
200,001 to 500,000 ........................	7,176	6,907	1,295	1,456	1,313	1,010	3,844	2,156	514
Over 500,000 .................................	5,908	5,792	1,053	891	1,582	1,528	2,573	1,769	Q

Principal Building Activity
Education .......................................	9,874	9,755	1,787	1,855	1,500	1,106	5,171	2,596	Q
Food Sales .....................................	1,255	1,131	Q	567	Q	N	Q	422	Q
Food Service .................................	1,654	1,608	168	675	186	Q	328	591	Q
Health Care ....................................	3,163	3,100	641	786	600	410	1,857	942	Q
Inpatient .......................................	1,905	1,905	424	386	409	353	1,477	672	Q
Outpatient ....................................	1,258	1,195	217	400	191	Q	380	270	Q
Lodging ..........................................	5,096	4,994	1,183	1,065	1,462	Q	2,773	1,356	Q
Retail (Other Than Mall)..................	4,317	4,075	444	2,049	667	Q	383	1,397	Q
Office .............................................	12,208	11,929	1,795	2,405	2,186	1,526	4,117	3,754	970
Public Assembly ............................	3,939	3,777	409	1,028	677	530	1,421	879	Q
Public Order and Safety ................	1,090	1,083	Q	260	Q	Q	437	328	Q
Religious Worship ..........................	3,754	3,581	577	1,945	875	Q	1,148	733	Q
Service ..........................................	4,050	3,687	457	1,974	1,010	Q	791	957	393
Warehouse and Storage ...............	10,078	8,126	913	3,757	2,457	Q	1,031	3,118	Q
Other ..............................................	1,738	1,691	Q	700	311	Q	546	498	Q
Vacant ...........................................	2,567	1,491	Q	550	Q	Q	Q	Q	Q

Year Constructed
Before 1920 ...................................	3,769	3,667	Q	1,350	782	Q	1,926	390	Q
1920 to 1945 ..................................	6,871	6,236	622	2,085	1,427	1,203	2,744	979	Q
1946 to 1959 ..................................	7,045	6,534	848	2,475	1,442	661	3,081	1,422	Q
1960 to 1969 ..................................	8,101	7,510	827	2,346	1,469	786	2,957	1,993	242
1970 to 1979 ..................................	10,772	10,223	1,378	3,612	2,393	573	3,339	3,443	779
1980 to 1989 ..................................	10,332	9,808	2,018	2,418	1,799	780	2,803	3,816	641
1990 to 1999 ..................................	12,360	11,254	1,974	3,971	2,433	691	2,257	4,067	814
2000 to 2003 ..................................	5,533	4,796	999	1,359	800	Q	1,316	1,911	401

Census Region
Northeast .......................................	12,905	12,596	1,213	3,596	2,786	1,245	6,228	2,912	579
Midwest .........................................	17,080	16,331	1,058	7,229	4,169	1,623	6,141	3,666	820
South .............................................	23,489	20,998	4,942	5,715	3,608	1,683	4,393	8,130	1,381
West ..............................................	11,310	10,102	1,600	3,075	1,981	615	3,662	3,312	481

Climate Zone: 30-Year Average
Under 2,000 CDD and --
More than 7,000 HDD ...................	10,622	10,109	727	4,587	3,014	801	4,060	2,126	816
5,500-7,000 HDD .........................	17,335	16,720	1,471	6,411	3,582	1,749	6,835	3,708	674
4,000-5,499 HDD .........................	11,504	11,239	1,971	2,648	2,524	1,266	4,693	3,204	497
Fewer than 4,000 HDD ................	15,739	13,965	3,283	4,313	2,569	918	3,334	5,619	525
2,000 CDD or More and --
Fewer than 4,000 HDD ................	9,584	7,995	1,361	1,658	856	432	1,500	3,365	750

Number of Floors
One ................................................	25,981	22,744	3,440	9,476	4,914	Q	3,267	8,267	1,236
Two ...............................................	16,270	15,408	2,146	6,368	2,908	501	5,116	4,671	874
Three .............................................	7,501	7,198	1,139	2,231	1,709	385	3,856	1,822	Q
Four to Nine ...................................	10,085	9,744	1,146	1,054	2,087	2,350	5,793	1,987	426
Ten or More ...................................	4,947	4,933	943	Q	927	1,298	2,391	1,273	502

Number of Workers (main shift)
Fewer than 5 .................................	15,492	12,182	1,196	5,347	2,782	Q	1,986	2,269	544
5 to 9 ..............................................	6,166	5,822	647	3,043	938	Q	1,140	1,571	Q
10 to 19 ..........................................	7,803	7,410	932	3,057	1,542	Q	1,884	2,209	394
20 to 49 ..........................................	10,989	10,822	1,460	3,814	2,364	653	3,588	3,526	799
50 to 99 ..........................................	7,934	7,650	1,398	1,899	1,628	460	3,556	2,835	372
100 to 249 ......................................	6,871	6,766	1,513	1,290	1,300	972	3,401	2,736	Q
250 or More ...................................	9,528	9,376	1,668	1,165	1,991	2,063	4,869	2,874	808

Weekly Operating Hours
Fewer than 40 ...............................	6,863	5,246	550	2,374	1,106	Q	1,023	1,058	239
40 to 48 ..........................................	11,622	10,928	1,623	3,978	2,013	493	3,381	3,119	479
49 to 60 ..........................................	15,723	14,763	1,910	4,950	3,172	1,576	4,113	4,185	949
61 to 84 ..........................................	10,334	10,012	1,545	3,426	1,810	760	3,491	2,806	804
85 to 167 ........................................	7,092	6,680	818	1,989	1,476	773	1,974	2,690	Q
Open Continuously ........................	13,149	12,399	2,367	2,899	2,969	1,384	6,441	4,163	449

Multibuilding Facility
Not Part of a Multibuilding
Facility ...........................................	40,048	37,438	4,995	14,226	7,979	1,144	11,924	12,056	1,874
College or University ......................	3,480	3,456	324	Q	279	1,977	1,175	440	Q
Primary or Secondary School ........	3,947	3,910	911	818	637	Q	1,691	1,168	Q
Office Complex ..............................	2,712	2,665	455	212	626	Q	1,055	992	Q
Retail Complex ...............................	1,238	941	Q	422	271	N	Q	280	Q
Religious Campus or Complex .......	2,347	2,245	320	731	302	Q	988	406	Q
Health Care Complex .....................	2,303	2,231	543	489	413	409	1,551	655	Q
Lodging or Resort Complex ...........	912	830	251	Q	380	Q	356	302	Q
Government Complex ....................	2,014	1,987	Q	319	273	Q	610	463	Q
Other ..............................................	5,783	4,325	696	2,019	1,384	Q	1,024	1,259	568

Renovations in Buildings
Constructed Before 1980
(more than one may apply)
Any Type of Renovation
Since 1980 ....................................	17,844	17,204	2,367	5,768	4,345	1,644	8,140	5,138	548
Addition or Annex .......................	6,551	6,439	1,187	2,481	1,627	435	3,417	1,982	Q
Reduction In Floorspace .............	1,012	1,012	Q	Q	Q	Q	698	Q	Q
Cosmetic Improvements ..............	13,119	12,739	1,687	4,128	3,186	1,169	6,277	3,773	346
Wall or Roof Replacement ..........	8,070	7,919	1,141	2,258	2,080	833	4,224	2,478	Q
Interior Wall
Re-Configuration ........................	8,518	8,385	1,144	2,539	2,330	1,007	4,470	2,668	Q
HVAC Equipment Upgrade ..........	10,768	10,634	1,765	3,438	2,925	1,262	5,534	3,539	361
Lighting Upgrade .........................	10,275	10,049	1,441	2,892	2,563	1,283	5,421	3,036	288
Window Replacement .................	6,354	6,157	788	1,973	1,680	686	3,361	1,763	Q
Plumbing System Upgrade ..........	7,144	6,988	1,042	2,063	1,891	924	3,891	2,293	Q
Insulation Upgrade ......................	4,015	3,974	516	1,664	1,192	351	1,735	1,526	Q
Other Renovation ........................	523	497	Q	Q	Q	Q	302	Q	N
No Renovations Since 1980 ..........	18,714	16,967	1,456	6,100	3,167	1,862	5,907	3,089	859
Building Newer than 1980 .............	28,225	25,857	4,991	7,747	5,032	1,660	6,376	9,794	1,856

Energy Sources (more than
one may apply)
Electricity .......................................	63,307	59,991	8,814	19,604	12,540	5,166	20,423	18,021	3,242
Natural Gas ....................................	43,468	42,974	5,552	15,304	8,969	2,291	18,174	13,618	1,801
Fuel Oil ...........................................	15,157	14,942	2,417	3,330	3,236	1,592	8,930	3,862	1,095
District Heat ...................................	5,443	5,378	413	Q	605	5,166	Q	589	Q
District Chilled Water ......................	2,853	2,734	Q	Q	Q	2,231	391	370	Q
Propane .........................................	7,076	6,790	944	2,831	1,968	Q	1,949	1,983	599
Other ..............................................	1,401	1,399	Q	617	448	Q	613	296	405

Space-Heating Energy Sources
(more than one may apply)
Electricity .......................................	28,600	28,600	8,688	8,653	9,838	1,088	7,766	11,947	2,139
Natural Gas ....................................	36,959	36,959	4,643	14,562	7,947	486	16,417	12,283	1,524
Fuel Oil ...........................................	5,988	5,988	295	1,827	1,438	Q	4,355	593	265
District Heat ...................................	5,198	5,198	413	Q	560	5,166	Q	528	Q
Propane .........................................	3,204	3,204	516	1,946	1,178	Q	761	833	443
Other ..............................................	842	842	Q	435	317	N	286	Q	384

Primary Space-Heating
Energy Source
Electricity .......................................	15,996	15,996	4,812	3,655	3,736	Q	2,115	6,767	1,286
Natural Gas ....................................	32,970	32,970	3,430	13,476	6,907	Q	15,138	10,115	1,275
Fuel Oil ...........................................	3,818	3,818	Q	1,153	739	N	2,714	Q	Q
District Heat ...................................	4,907	4,907	388	Q	533	4,875	Q	466	Q
Propane .........................................	1,955	1,955	Q	1,140	522	Q	Q	469	Q
Other ..............................................	382	382	Q	Q	Q	N	Q	Q	Q

Energy End Uses (more than
one may apply)
Buildings with Space Heating ........	60,028	60,028	8,814	19,615	12,545	5,166	20,423	18,021	3,262
Buildings with Cooling ....................	56,940	55,188	8,780	17,494	11,526	4,376	19,051	17,745	2,961
Buildings with Water Heating .........	56,478	55,154	8,390	17,920	11,659	4,354	19,904	16,821	3,031
Buildings with Cooking ...................	22,237	21,725	4,202	5,351	4,804	1,747	11,586	7,112	868
Buildings with Manufacturing ........	3,138	3,072	293	1,486	1,087	Q	1,145	1,087	Q
Buildings with Electricity
Generation ....................................	12,821	12,635	2,580	2,377	2,750	1,953	6,863	4,166	915

Percent of Floorspace Heated
Not Heated .....................................	4,756	N	N	N	N	N	N	N	N
1 to 50 ............................................	6,850	6,850	670	2,852	2,055	Q	792	2,390	279
51 to 99 ..........................................	8,107	8,107	1,497	2,597	1,943	631	3,110	2,546	476
100 .................................................	45,071	45,071	6,647	14,165	8,547	4,509	16,521	13,085	2,507

Heating Equipment (more
than one may apply)
Heat Pumps ....................................	8,814	8,814	8,814	2,117	1,861	413	2,787	3,069	358
Packaged Heat Pumps .................	5,442	5,442	5,442	1,125	1,114	Q	1,699	2,236	Q
Split-System Heat Pumps .............	2,581	2,581	2,581	774	872	Q	622	717	Q
Individual Room Heat Pumps ........	2,691	2,691	2,691	592	594	Q	1,227	1,376	Q
Furnaces .......................................	19,615	19,615	2,117	19,615	4,858	Q	2,986	3,483	883
Individual Space Heaters ...............	12,545	12,545	1,861	4,858	12,545	543	3,830	3,900	373
District Heat ...................................	5,166	5,166	413	Q	543	5,166	Q	512	Q
Boilers ............................................	20,423	20,423	2,787	2,986	3,830	Q	20,423	3,910	Q
Packaged Heating Units .................	18,021	18,021	3,069	3,483	3,900	512	3,910	18,021	482
Other ..............................................	3,262	3,262	358	883	373	Q	Q	482	3,262

Cooling Equipment (more
than one may apply)
Residential-Type Central
Air Conditioners ............................	11,035	10,617	1,356	6,251	2,933	Q	3,352	2,812	495
Heat Pumps ....................................	9,041	8,921	8,366	2,111	1,774	404	2,919	3,065	381
Packaged Heat Pumps .................	5,426	5,407	5,174	1,128	1,054	Q	1,694	2,147	Q
Split-System Heat Pumps .............	2,606	2,559	2,452	761	840	Q	650	711	Q
Individual Room Heat Pumps ........	2,940	2,887	2,610	596	568	Q	1,336	1,453	Q
Individual Air Conditioners .............	12,558	12,167	2,049	4,077	4,558	758	5,926	3,722	579
District Chilled Water ......................	2,853	2,734	Q	Q	Q	2,231	391	370	Q
Central Chillers ...............................	11,636	11,440	1,992	1,352	2,175	1,737	7,857	2,703	979
Packaged Air Conditioning
Units ..............................................	29,969	29,007	3,446	9,995	6,288	1,023	9,946	14,747	1,255
Swamp Coolers .............................	1,561	1,451	Q	718	611	Q	620	347	Q
Other ..............................................	1,232	1,203	Q	Q	Q	Q	596	Q	Q

Main Equipment Replaced Since
1990 (more than one may apply)
Heating ...........................................	16,403	16,403	2,455	6,420	4,563	Q	5,746	5,315	730
Cooling ...........................................	20,995	20,633	3,375	6,935	4,979	917	9,022	6,277	912

HVAC Conservation Features
(more than one may apply)
Variable Air-Volume System .........	19,597	19,108	2,747	3,619	3,962	2,886	9,385	5,938	1,192
Economizer Cycle ..........................	21,108	20,828	3,558	3,846	4,517	2,873	10,246	7,804	1,274
HVAC Maintenance .......................	51,163	49,812	7,769	15,148	9,459	4,956	18,923	15,677	2,579
Energy Management and
Control System (EMCS) ................	15,630	15,457	2,897	2,092	2,973	2,662	7,451	5,128	1,124

Equipment Usage Reduced
When Building Not In Full Use
(more than one may apply)^a
Heating ...........................................	42,722	42,722	6,388	14,172	9,211	3,047	14,636	12,799	2,411
Cooling ...........................................	43,205	41,977	6,693	13,252	8,795	3,273	14,480	13,342	2,336
Lighting ..........................................	46,987	44,799	6,227	15,787	8,942	3,568	13,430	12,979	2,563
Office Equipment ...........................	19,397	18,638	2,508	7,119	3,604	1,313	5,788	4,887	990

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.doe.gov/emeu/cbecs. * 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. ^aThe definition for one or more of these row items has changed and may not be directly comparable with past CBECS estimates. See "Guide to the Tables" for discussion of the differences. 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.
Notes: ● HVAC = Heating, Ventilation, and Air Conditioning. ● 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.