Water heating system energy use is typically the second largest in U.S. residences behind space conditioning (space heating and cooling). Recent advances are changing the way water heating service is provided. This article describes hot water demand in residences, discusses new options for providing hot water, and explains ASHRAE's role in the water heating industry.
, Hiller, C.
and Lutz, J.
How Residential Water Heating is Changing, ASHRAE Journal, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=931408
(Accessed December 5, 2023)