Library

Report about partnership to build three communities of net zero houses.

Case study about affordable housing in a mixed, humid climate.

Presentation report detailing Heat Pump Water Heater (HPWH) interaction with space conditioning systems in real-life test scenarios that explains some of the problems arising from these interaction and information that can be used to make the system more efficient.

NAFA’s user guide for understanding ANSI/ASHRAE Standard 52.2-2012.

Report addressing the ever increasing percentage of whole house energy use that is attributable to miscellaneous electricity loads (MELs) and major appliances.

Users guide to help contractors and homeowners use the Cold Climate Heat Pump Sizing Support Tools developed by NEEP to size and select the best air source heat pumps for their cold climate location.

Document presenting analysis results, focusing on relative humidity (RH) excursions, which are defined as unique events of indoor RH above a threshold.

Document providing a case study of commissioned performance measures that justify costs for these demonstration and "live" show homes.

Report discussing the measured variability in indoor space temperatures in a set of 60 homes located in Florida, New York, Oregon, and Washington.

Fact sheet describing the results of an analysis of humidity control and variable refrigerant flow (VRF) system efficiency in three new multifamily buildings in New York, NY.

Information sheet about proper ventilation and air sealing.

Standard that defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality in low-rise residential buildings. This version of the standard was published in the year 2010, and is available for...

Standard that defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality in low-rise residential buildings. This version of the standard was published in the year 2013, and is available for...

Standard that provides procedures and methods for meeting minimum ventilation and indoor air quality requirements to engineers, design professionals, owners, and jurisdictional authorities where model codes have been adopted. This is the current version of the standard, which was published in the...

This report describes how twenty homes were tested and monitored in the Zone 2 climate of Houston, Texas, U.S.A., to evaluate the humidity control performance and operating cost of six different integrated dehumidification and ventilation systems that could be applied by production homebuilders.

Report summarizing NRELs efforts to develop diagnostic test cases to conduct accurate energy simulations when phase change materials (PCMs) are modeled in residential buildings.

Document describing the measured annual performance data from 12 recent-vintage very low energy homes in the US.

Report describing concentrations of 54 volatile organic compounds (VOCs) and ventilation rates that were measured in four new manufactured houses over 2 - 9.5 months following installation and in seven new site built houses 1 - 2 months after completion.

Report describing a field study of 31 homes to test envelope and duct leakage and fan flowrates, and to determine ventilation operation characteristics.

Fact sheet describing the home certification organization, Home Innovation Research Labs and their requirements for whole house water management in a checklist format as well their compliance with certified Water Rating Index (WRI), organization scope, and information verifiers.

Webpage describing the home certification organization, 24/7 Certifications and their requirements for whole house water management in a checklist format.

Webpage describing the home certification program, Home Innovation Research Labs' requirements for whole house water management.

Webpage describing the home certification organization, RESNET and its requirements for whole house water management in a checklist format as well as the scope, information verifiers, and partners of the program.

Fact sheet describing how the Environmental Protection Agency ensures labeled homes meet the WaterSense efficiency requirements for whole house water management including a list of requirements and a data chart.

Fact sheet describing four different efficient hot water delivery (HWD) systems, the trunk-and branch, core, whole-house manifold, and recirculation, with emphasis on system schematics, piping materials, and regulations to design and verify the systems.

Document on the EPA WaterSense webpage describing the technical evaluation process used by EPA WaterSense to authorize home certification organizations to certify homes through the WaterSense program.

Report assessing the performance and cost-effectiveness of a zero net energy community project in Davis, CA.

Webinar presenting best practices in HVAC design and commissioning

EPA coronavirus Q&A discussing the role of HVAC filters in dealing with COVID-19.

Factsheet describing the importance of system charging, superheat and subcooling.

Information sheet discussing the differences between homeowner energy consumption trends in highly efficient homes.

Article discussing the risks that can occur from undercutting bedroom doors to provide return airflow from bedrooms, as well as corrective measures that can be taken to address these risks.

Conference paper presented at the 2020 Summer Study on Energy Efficiency in Buildings presenting the results of an evaluation of control strategies used when new mini-splits are installed in a home with an existing HVAC system.

Brochure about how to install and use a whole-house fan.

Report summarizing results from a case study about whole-house mechanical ventilation systems in Chicago.

Document about proper HVAC system sizing.

Article describing ways to design and construct a building to resist wildfires.

A list of exterior building products and materials approved for use in wildland urban interface zoned homes. These products are non-combustible or ignition-resistant.

Report outlining the features of a test house built in Silver Spring , Maryland, and discussing the implementation of the energy efficient design, and reports on the short-term testing results.

Tax credit for ENERGY STAR certified windows, doors and skylights.

Webpage from American Red Cross describing how to stay safe and prepare homes for severe winter weather such as blizzards.

Webpage describing steps to take to prepare homes for winter weather as well as safety information for after storms have passed.

Article describing sustainable community development of near zero energy homes in Greenfield, Massachusetts.