Efficient electric hot water heating technologies significantly reduce the carbon emissions of multifamily buildings, according to a report by the American Council for an Energy-Efficient Economy (ACEEE) and New Buildings Institute (NBI).
In multifamily buildings with five or more units, water heating uses more energy than space heating, cooling, or lighting, the report says. Converting gas-fired water heaters to advanced technology—electric heat pump water heaters (HPWHs)—would cut greenhouse gas emissions from water heating by an average of 58%.
If HPWHs are powered entirely by clean sources, they cause zero emissions, making them a critical tool for decarbonizing the economy. Efficient electric water heaters carry a higher upfront cost over gas models, so policymakers would have to provide incentives to owners to make the conversion, the report says.
“Many utilities offer incentives for building or unit owners to install in-unit heat pump hot water heaters,” an ACEEE/NBI news release says. “Yet few programs are designed specifically for multifamily buildings, which offer unique challenges.”
Related Stories
Codes and Standards | Jun 21, 2017
Senate bill would prohibit tax money for sports stadium projects
Bipartisan legislation would prevent use of municipal bonds by pro teams.
Codes and Standards | Jun 19, 2017
Developer, architect hit with $10 million construction defect verdict
Case pertained to construction of condo development that was not fire code-compliant.
Codes and Standards | Jun 19, 2017
Green building advocates erect icehouses on Penn. state capitol steps to make point on codes
State’s codes have not been updated since 2009.
Codes and Standards | Jun 15, 2017
Cornell Tech unveils plans to reach Net Zero at The Bloomberg Center
Campus plans include photovoltaic arrays and geothermal ground source heat pumps.
Codes and Standards | Jun 13, 2017
Canada Green Building Council and Green Business Certification Inc. announce partnership
New joint venture will deliver enhanced services and support tools and programs throughout Canada.
Codes and Standards | Jun 8, 2017
Nail-Laminated Timber Design and Construction Guide released
New document focuses on design and construction considerations for horizontal NLT applications.
Codes and Standards | Jun 8, 2017
Car sharing popularity means parking zoning and codes may be promoting overbuilding of garages
Some designers look to modular designs in anticipation of alternate uses.
Codes and Standards | Jun 7, 2017
IAPMO advances toward new 2017 Water Efficiency and Sanitation Standard
Revised pipe-sizing method for residential applications will be included.
Codes and Standards | Jun 7, 2017
New Colorado law could stimulate stalled condo market
Construction defect law modifications could ease litigation risk and cut insurance rates.
Codes and Standards | Jun 6, 2017
New York City will require construction superintendents on buildings higher than three stories
New laws focus on construction safety.
