Space heating and water heating have been the highest two energy-consuming uses in U.S. houses in 2015, in step with EIA’s newest Residential Energy Consumption Survey (RECS). Space heating intake can range significantly via local weather and construction traits, whilst variation in water heating intake is pushed essentially via the selection of occupants in a home. Households use quite a lot of fuels for house heating and water heating, which impacts those end-use stocks of family calories expenditures.
Household calories intake varies significantly via the kind of home development. Single-family indifferent houses accounted for 62% of the occupied residential construction inventory in 2015, and citizens in those houses ate up just about thrice extra calories on reasonable than citizens dwelling in an condo construction with 5 or extra gadgets. In single-family indifferent houses, house heating was once via a ways the biggest finish use at 46% of general intake. For citizens of enormous condo structures, house heating accounted for handiest 25% of intake.
Apartments are a lot smaller than single-family houses, averaging 924 sq. ft according to condo as opposed to 2,486 sq. ft according to single-family home. Adjacent residences act as a form of insulation from climate components, which reduces heating losses and general heating quite a bit relative to single-family houses. In huge condo structures, house heating calories utilization is ceaselessly not up to water heating.
The selection of family individuals is a key determinant of calories intake in houses, specifically for water heating. In 2015, a two-person family ate up 12.five million British thermal gadgets (Btu) on reasonable, or 16% of general intake, to heat water. A four-person family ate up just about two times as a lot calories for water heating at 22.7 million Btu according to home, or 24% of general intake for a family that measurement. By comparability, the selection of occupants in a home has slightly much less impact at the calories ate up for different finish uses such as house heating or air con.
In calories an identical gadgets, families paid $37.55/million Btu for electrical energy in comparison with $10.31/million Btu for herbal fuel in 2015. Households use a mixture of herbal fuel, electrical energy, and different fuels for house heating and water heating, however electrical energy is the dominant gas for many of the closing finish uses such as air con, fridges, and lighting fixtures.
Because of the combination of fuels used, expenditures for house heating and water heating have a tendency to be decrease relative to different family finish uses. Space heating and water heating jointly accounted for 62% of family calories intake in 2015, however they have been handiest liable for 44% of family calories prices as a result of the combination of fuels used to supply those finish uses.
The 2015 RECS comprises intake and cost estimates for 26 electrical energy, 7 herbal fuel, five propane, and three gas oil family calories end-use classes. These information, in addition to general and reasonable gas estimates throughout family traits, are to be had in RECS tables, stories, and a microdata record. Detailed documentation, including descriptions of the end-use estimation procedure, is also to be had.