Library

Document outlining the current and the proposed draws and estimates typical ratings changes from draw specification changes for typical systems in four cities.

Fact sheet poster describing how to add exterior, continuous, rigid insulation to the exterior walls when replacing siding on an existing home.

Specifications for water heating systems designed to advance higher performing electric and gas heat pump water heaters.

Report describing methodology, analysis, and findings from a case study of a 110-unit retrofit of gas tankless water heaters in a hot/humid climate in Alachua County, Florida.

Report summarizing commissioning, short-term testing, utility bill data analysis, and results of on-site monitoring of a deep energy retrofit.

Case study describing solar thermal and photovoltaic systems in new construction.

Brochure about air sealing windows.

Case study describing solar thermal and photovoltaic systems in new construction.

Case study describing solar thermal and photovoltaic systems in new construction.

Training module describing the operation, efficiency, consumer and seller benefits, and cost comparison of Heat Pump Water Heaters (HPWH) against conventional gas, oil, or electric water heaters.

Design guide providing solutions and tools for designing central heat pump water heater systems in multifamily and other commercial buildings.

Report describing combined space- and water-heating (combi) systems using a high-efficiency direct-vent burner.

Research report providing a comparison of the most common residential water heating technologies to determine energy-efficient and cost-effective water heating technologies are when subjected to a variety of typical operating conditions.

Report about a hybrid condensing water heater (thermal efficiency = 0.973, energy factor = 0.95) installed in an occupied home in Sacramento, California, and monitored for one year to determine the actual in situ efficiency.

Report describing the monitored long-term performance of two solar domestic water heating systems in northern climates.

Research study evaluating energy savings and cost effectiveness of installing low-emissivity (low-e) storm windows over existing windows in residential homes in all climate zones.

Fact sheet poster describing the certification of window attachment products such as storm windows, roller shades, cellular shade, and solar screens by the Attachment Energy Rating Council (AERC).

Report exploring feasibility of designing prescriptive retrofit measure packages for typical Chicago region multifamily buildings in order to achieve 25% source energy savings.

Research study documenting market-ready energy solutions to improve the efficiency of new affordable housing in the marine climate of Washington State.

DOE-sponsored report describing a study investigating condensation buildup on windows when using insulating shades.

Report describing the performance, cost, and carbon impacts of unitary heat pump water heaters with load-shifting controls in a shared configuration for a multi-family project, highlighting significant savings in energy usage, CO2 emissions, and utility costs.

The main objective of this expert meeting was to bring together a group of experts intimately involved with issues related to assessing the performance of residential high efficiency water heating systems.

Expert meeting describing meeting details for recommendations for applying water heaters in combination space and domestic water heating systems.

Expert meeting report aimed at a greater understanding of the windows research that Building America partners and national laboratories are engaged in to help professionals and consumers choose best practice strategies.

Brochure on specifications for solar thermal systems.

Informational guide describing the design, installation, and maintenance best practices and technical considerations for integrated Heat Pump Water Heaters in single-family and multifamily new construction.

Report describing the significant potential for energy use reductions through heat pump water heaters, which have been a crucial part of Northwest power plans for decades and have recently achieved substantial savings with new integrated models and climate specifications.

Case study of new home construction in the hot-dry and mixed-dry climate zones.

Best Practices document providing an introduction to current photovoltaic and solar thermal building practices.

Report on a project that enhanced the HWSIM distribution system model to more accurately model pipe heat transfer.

Journal article presenting modeling of residential gas water heaters via dynamic simulation models to determine the effect of the pilot light on their annual energy consumption.

Report with guidance for installing windows with foam sheathing on wood-frame walls.

Report describing the objective evaluation of space conditioning interactions between heat pump water heaters and home heating systems during winter 2016-2017, revealing a smaller than anticipated impact on space conditioning loads.

Report summarizing results of testing emerging combo water heating technologies under controlled laboratory operations, that differentiate the performance of the various packaged equipment configurations being offered.

Report examining performance measures in the context of a large-scale renovation project.

Report identifying the target market for solar water heaters and potential pathways and cost/performance targets that must be met for these systems to realize large energy savings.

Brochure describing use of low-e storm windows as effective ways weatherization programs can increase the efficiency of windows without significant costs.

Document pertaining to design and application guidance for combination space and tankless domestic hot water heating systems used in residential buildings, based on field evaluation, testing, and industry meetings.

Report describing the installation and operation of forced-air heating and domestic hot water combi systems in residential homes.

Document describing a process to help builders, homeowners, and designers select energy-efficient windows for new and existing residential construction in all U.S. climate zones.

Document developed to help residential builders and retrofitters transition from tank-type water heaters to tankless water heaters.

Document providing information and guidance about rehabilitating, retrofitting, and replacing wood window assemblies in residential construction.

Study in which a central heat pump water heater system was monitored in detail and used to create a model for assessing similar systems in various climates.

Report providing information to researchers, utility program managers, and building owners interested in controlling heating energy waste and improving resident comfort.

Technical report describing research aimed to provide window manufacturers with foundational guidance for installing windows in walls with continuous insulation (CI), addressing critical aspects such as evaluating common installation methods, establishing acceptance criteria for window performance...

Report describing the key findings from the first third-party field validation of 120-volt heat pump water heater (HPWH) technology, addressing the significant barriers to their adoption and emphasizing their potential role in reducing carbon emissions from residential water heating.

Research project aimed to verify whether homes in the New Jersey HPwES program achieved 30% source energy savings, and if so, what measures were implemented to achieve them.

Report researching cost- effective solution packages for significant energy efficiency and indoor air quality improvements masonry multifamily urban buildings.

Report discussing instrumentation methods and field operation characteristics of two GSHPs in test houses, including a comparison between the manufacturers listed COP values and the COPs calculated from field data.

DOE report characterizing the installed base of windows and window coverings, and how users operate window coverings in order to enable precise quantification of energy savings.