A new web-based tool by the Department of Energy offers comprehensive information about how to size, select, and install electric heat pump water heaters (HPWHs).
HPWHs can be two to four times more efficient than standard units. The benefits are maximized when installers follow best practices and choose the best model and size for the home. The HPWH Installation Tool provides customized guidance for installers, sales associates, and homeowners to help overcome barriers to HPWH adoption.
A HPWH resembles a traditional water heater, but rather than using a gas-fired burner or electrical element to warm the water in the tank, the HPWH extracts heat from the surrounding air. Both HPWHs and traditional water heaters last for about 15 years, but HPWHs require a certain amount of airflow to operate effectively, so the location of the water heater needs to be evaluated. It’s important that HPWHs are sized correctly because an undersized heater could, under certain conditions, result in lukewarm water.
The installation tool also helps determine whether a home’s electrical panel needs to be updated—a common situation when replacing a fossil fuel-fired water heater with a HPWH—or if a HPWH that plugs into a standard 120-volt electrical outlet might be a viable option.
Related Stories
Codes and Standards | Feb 16, 2021
Bechtel joins international heat resilience organization
Experience designing resilience standards to aid effort to protect communities from extreme heat.
Codes and Standards | Feb 10, 2021
More than two-thirds of construction companies say COVID-19 has not impacted their ESOP
Half of survey respondents say 2020 project profitability decreased due to pandemic.
Codes and Standards | Feb 9, 2021
New Jersey approves new electric vehicle-ready home requirement
Homebuyers must be given option for charging station on new construction.
Codes and Standards | Feb 9, 2021
New California law removes barriers to residential development
Measure removes restrictions for ADUs in urban areas and master planned communities.
Codes and Standards | Feb 8, 2021
Alliance yields more accurate data for rating and certifying systems of construction materials
Crosswalk API offers trusted format to specify and procure healthier products.
Codes and Standards | Feb 4, 2021
2021 IBC requires automatic doors for entrances to public buildings
One door must be either a full power-operated door or a low-energy power-operated door.
Codes and Standards | Feb 3, 2021
Two new International Code Council online code tools released
Offer detailed information about global building code usage and U.S. adoptions.
Codes and Standards | Feb 2, 2021
Biden tells OSHA to bolster COVID-19 safety rules
Order could lead to a national playbook for fighting COVID-19 on jobsites.
Codes and Standards | Feb 1, 2021
Fenestration Alliance updates standard for mulled combination assemblies
Last updated in 2010, document describes procedures and requirements for air leakage, water resistance, and structural performance.
Codes and Standards | Jan 28, 2021
Natl. Fire Protection Assn. releases new energy storage system fact sheet
Comes as Biden Administration prepares ambitious clean energy agenda.
