Library

Document with evaluation of 14 heat pump water heaters (including three recently released HPWH products) installed in existing homes in the northeast region of the United States.

Report providing guidance on how to implement a compact duct system inside a plenum truss bulkhead of a one-story, slab-on-grade home.

Report describing recommendations for optimizing flexible duct, constant-volume HVAC systems using junction boxes.

Document covering the technical aspects of buried and insulated ducts (BEDs), as well as the advantages, disadvantages, and risks of BEDs compared to alternative strategies.

Report describing the sealing and insulating of HVAC duct systems in existing homes.

Document illustrating guidelines for efficient installation of interior duct systems in new housing.

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

Document providing renovators and retrofit contractors an overview of considerations when including wall air sealing and insulation in an energy retrofit project.

Research study analyzing measured energy savings from a moderate retrofit by comparing post-retrofit performance with measured pre-retrofit monitored data.

Standard that prescribes a testing method to determine the efficiency of space heating and/or cooling thermal distribution systems under seasonal and design conditions. This version of the standard was published in the year 2014, and is available for preview and purchase at the reference link. The...

Website describing Minnesota Power’s New Construction Energy Efficiency program that promotes building practices and technologies that enhance new residential construction.

Report describing the work conducted for high performance hybrid assemblies.

Report providing extensive guidance on controlling moisture in building envelopes through proper selection and installation on air, water, thermal, and vapor barriers.

Report explaining moisture-related concerns for high R-value wall assemblies and discusses past Building America research work that informs this study.

Report on the use of vapor diffusion ports to reduce moisture issues with buried ductwork in unvented attics in hot-humid climates.

Report describing evaluation of several configurations of wall assemblies to determine the accuracy of moisture modeling and make recommendations to ensure durable, efficient assemblies.

Report detailing a three-winter study on unvented roof assemblies in a cold climate, assessing insulation material, ridge diffusion vent presence, vapor control membranes, relative humidity, and interstitial airflow. Results indicate that utilizing air-permeable fibrous fill insulations in unvented...

Report detailing a three-winter study on unvented roof assemblies in a cold climate, assessing insulation material, ridge diffusion vent presence, vapor control membranes, relative humidity, and interstitial airflow; results indicate that utilizing air-permeable fibrous fill insulations in unvented...

Conference paper making the case that moving ducts to conditioned space saves energy, is practical for production builders (when accompanied by careful pre-planning), and creates significant andmarketable energy savings for homebuyers.

Report providing guidance to air-sealing multifamily homes.

This report is designed to meet ASHRAE 62.2-2010/2013 and ANSI/ACCA’s 5 QI-2015 protocol, thereby improving the performance of HVAC equipment in new homes when compared to homes built to minimum code.

Report demonstrating cost-effective energy savings targets as well as improved comfort and indoor environmental quality associated with deep energy retrofits by a large public housing authority as part of a larger rehabilitation effort.

Guide providing information on controlling attic ductwork sweating.

Fact sheet describing a novel, simplified air delivery system using a plug-and-play model that features 3-inch diameter flexible ducts, efficient fittings, and a simplified installation process that resulted in successful market engagement through commercialization.

Document about development of recommendations to help residential HVAC designers select optimal supply inlet size and system operating conditions to maintain good thermal comfort in low heating and cooling load homes.

Report studying the specification, implementation, and energy savings from an EER in a group home, with an energy savings goal of 30%.

Report presenting the results of a study evaluating retrofit solutions for addressing the effects of wind washing on homes.

Research study using modeling to determine optimal combination(s) of components/pumps, high efficiency heat sources, plumbing configurations and controls that result in the highest overall efficiency for a hydronic system.

Report providing information about improving the energy efficiency and long-term durability of the buildings that are being reconstructed post Katrina in New Orleans.

Report providing information about improving the energy efficiency and long-term durability of the buildings that are being reconstructed post Katrina in New Orleans.

Research study exploring a test method measuring air leakage between units through common surfaces and air infiltration across exterior, noncommon surfaces of the enclosure.

Article describing airflow within buildings due to pressure differences.

Report about seven pilot homes and development of guidelines for deep energy retrofits in cold climates.

Information sheet about how to reduce thermal bridging in walls.

DOE case study findings on raised ceiling interior duct systems.

Research study about two test homes that are examined with the goal of providing case studies that could be applied to other similar New England homes.

Report describing steps homeowners can take to improve the indoor air quality in their home, including ventilating, preventing pests, and reducing pollutants in the home.

Document reviewing ventilation strategies for different climate zones that also includes schematic drawings and photographs of various ventilation installations.

Report including an overview of the buried duct research and information the retrofit methodology used to install and test the three existing duct systems, including short- and long-term data collection.

Document presenting results from testing prototype HVAC duct system designs that would locate the entire length of duct work within the air and thermal barriers of the building envelope. These include one that incorporated a high-side supply register, one that utilized a single soffit located within...

Presentation providing information about correctly installing ductwork in new and existing homes.

Report proposes high performance duct measures for inclusion in California Title 24 building energy efficiency standards for 2016.

Report describing a study using parametric computer simulations of 112 single-family and 63 multi-family residential building prototypes to quantify the contributions of building components such as roofs, walls, windows, infiltration, outside air, lighting, equipment, and people to the aggregate...

Report describing how modification of model specifications to include guidance on energy efficiency measures can create a greater level of consistency in executing energy efficiency retrofit measures across the multiple regions where a developer may work.

Research study about a high performance retrofit of an existing brick building (a former convent) into condominiums, all affordable housing.

Report identifying the steps to take, with the help of a qualified home performance contractor, to seal unwanted air leaks while ensuring healthy levels of ventilation and avoiding sources of indoor air pollution.

Report describing procedures for increasing sensible efficiencies through increased flow rates across the air handling unit and increased indoor coil sizes.

Report about cost effective energy-efficient upgrades that can be implemented in the hot, dry Southwest climate.

Report about a deep energy retrofit Cool Energy House.

Document reviewing current and potential ventilation technologies for residential buildings with particular emphasis on North American climates and construction.