January 01, 2006
New York City Energy Use and More Recessed Cans
Average New York Energy Use? The article by Mr. Henry Gifford in the Sept/Oct ’05 issue of Home Energy, “Third Street,” (p. 24), shows the “Average NYC Apartment” heating energy use as 24 Btu/ft2/HDD. With 5,000 HDD, that means heating energy of 120,000 Btu/ft2/yr. He also claims the “Average NYC Apartment” uses 103,262 Btu/ft2/yr for hot water. Then he proceeds to make comparisons with the buildings described in his article. The following data come from “What Type of Heating Uses Least Energy?” by Segeler, Trunk, and De Pinto, in the August 1973 Heating/Piping/Air Conditioning magazine. These actual measured data are from existing New York City apartment buildings that were built and being operated before anyone ever heard of an energy code, before the 1973 Arab oil embargo, before energy conservation was well known, and when the price of oil was pennies per gallon. These buildings are likely uninsulated with singleglazed and drafty windows. For 18 New York City Housing Authority buildings with 16,934 dwelling units using oil, the average source energy for heating was 82,000 ...
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