Library

Manual that identifies certain leakage limits for ducts and outlines procedures for testing ducts for conformity with air leakage limits that are set forth in a designer’s project specification.

Fact sheet outlining the research behind how smart ventilation controls boost energy efficiency and indoor air quality, including research findings from seasonal temperature, timer, and real-time weather-based controls showing that all three systems showed potential for energy savings while...

Research study presenting a unique opportunity to both identify and evaluate deep retrofit measures that are practical and potentially cost effective for the retrofit market, as well as review the cost effectiveness of the Passive House design approach for achieving energy savings in deep retrofits.

Standard describing methods for testing the airtightness of buildings and HVAC equipment.

Test method designed to calculate an assigned air permeance of flexible sheet or rigid panel-type materials at a reference air pressure differential of 75 Pa which was published in the year 2021 and is available for preview and purchase at the reference link.

Test method providing a rapid means of determining the steady-state thermal transmission properties of thermal insulations and other materials with a high level of accuracy when the apparatus has been calibrated appropriately. This version of the standard was published in the year 2021 and is...

ASTM standard test method for surface burning response of different building materials which was published in the year 2022 and is available for preview and purchase at the reference link.

ASTM standard test method for testing the surface burning response of different building materials which was published in the year 2023 and is available for preview and purchase at the reference link.

Standard that describes the principles for the design of a hot box apparatus and the minimum requirements for the determination of steady state thermal performance of building assemblies when exposed to controlled laboratory conditions. The current version of the standard was published in 2019, and...

Test method designed to obtain reliable values for the WVTR of plastic film and sheeting which was published in the year 2020 and is available for preview and purchase at the reference link.

Report about results of 10 test buildings in Chicago, studied to identify best practices for methodology, typical costs, and energy savings associated with steam system balancing.

Information sheet about buried ducts.

Report providing information based on research and case studies, to remodelers and consumers about opportunities to increase home energy performance.

Report intending to provide useful information as the DOE/BA develops and implements comprehensive communications and outreach strategies for demonstration homes.

Report describing the equipment selection of a split system air conditioner and furnace for an example house in Chicago, Illinois, as well as a heat pump system for an example house in Orlando, Florida.

Report about proper water heater selection developed to provide step-by-step procedures for evaluating preferred cost-effective options for energy efficient water heater alternatives based on local utility rates, climate, and anticipated loads.

Research project evaluating the pre-and post-retrofit energy consumption of a marine climate retrofit, compare actual energy use to original predictions, and identify opportunities for cost savings in other similar retrofits in this climate.

Report providing performance results of a home's heat pump water heater and whole-house dehumidifier over a six-month period.

Report evaluating a test home built in Atlanta, GA in the mixed-humid climate zone. The report outlines the features of the house, discusses the implementation of the energy efficient design, and presents the results of short-term characterization testing.

Document about laboratory testing of five integrated heat pump water heaters (HPWH).

Document about NREL's repository of residential building characteristics and historical energy use data, used to improve accuracy of residential energy analysis tools.

Report using data from various sources to characterize the impact on human health and property damage from indoor environmental quality and other hazards.

FSEC certification and testing page for solar systems.

Report proposing a procedure for estimating the whole opaque wall R-value (whole-wall R-value), independent of system type and construction materials.

Guide from Energy Star on smart thermostats and offering some guidance for choosing one.

This report describes the results of a multiyear research project that investigated the energy savings attributable to thermostatic radiator valves (TRVs) installed on one-pipe steam distribution systems.

Report on a project conducted to better understand the current usage of thermostatic radiator valves by key market players in steam and hot water heating and to conduct limited experiments on the effectiveness of new and old thermostatic radiator valves as a means of controlling space temperatures...

Information sheet describing transfer ducts and grilles for HVAC.

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

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.

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.

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.

Research study developed and verified a fuel oil flow field measurement protocol that is cost effective and can be performed with little training for use by the BB program as well as other weatherization programs and building science researchers.

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

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

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

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

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.

Report describing work conducted by the Building Science Corporation (BSC) Building America Research Teams Energy Efficient Housing Research Partnerships project.

Research study describing an evaluation of selected windows undertaken by IRC researchers at Ottawa’s Laurier House (now being used as a museum) to determine their effectiveness in controlling condensation.

Research study describing demonstration homes that provided a wealth of information for the building community in terms of the science, effort, and cost of increasing the energy efficiency of our nation's housing stock.

Report detailing retrofit of two existing houses in the Wyandotte Neighborhood program.