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Library

This library contains research reports produced by the Building America program and other building science resources used to support this Solution Center. The materials cover both new construction and existing homes. Use the search box and/or the filters to explore hundreds of residential building resources. Access to some references not produced by Building America may require purchase from the publisher. Documents are listed alphabetically. While we continually update our database, links may have changed since posting. Please contact our webmaster if you find broken links.

Showing results 1 - 50 of 66

An In-Depth Look at Ground Source Heat Pumps and Other Electric Loads in Two GreenMax Homes

Author(s)
Shapiro Carl,
Puttagunta Srikanth
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
Steven Winter Associates,
SWA,
National Renewable Energy Laboratory,
NREL
Publication Date
Report about two test home evaluations that provided valuable data about the true in-field performance of various building mechanical systems and LAMELs.

Central Fan Integrated Ventilation Systems, Info-610

Author(s)
Building Science Corporation
Organization(s)
BSC
Publication Date
Report about ventilation system design, including central fan integrated supply (CFIS) system, made up of a 6-inch outdoor air intake duct connected to the return side of the air handler with a fan cycling control to make sure the fan runs a programmed minimum amount of time.

Combined Space and Water Heating: Next Steps to Improved Performance

Author(s)
Bohac Dave,
Schoenbauer Ben,
Huelman Patrick H
Organization(s)
University of Minnesota,
UMN,
NothernSTAR,
NSTAR,
U.S. Department of Energy,
DOE
Publication Date
Report describing combined space- and water-heating (combi) systems using a high-efficiency direct-vent burner.

Compact Buried Ducts in a Hot-Humid Climate House

Author(s)
Mallay David
Organization(s)
Home Innovation Research Labs,
HIRL
Publication Date
Report on heating and cooling air-distribution ducts that are insulated, installed close to the ceiling in a vented attic and covered with attic insulation to minimize energy loss.

Deep Energy Retrofits - Source Energy and Carbon Decisions

Author(s)
Less Brennan,
Walker Iain S
Organization(s)
Lawrence Berkeley National Laboratory,
LBNL
Publication Date
Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Source Energy and Carbon Decisions chapter helps users carefully assess the impacts of switching from gas to electricity for heating end-uses, using source energy and/or carbon emissions...

Development and Validation of Home Comfort System for Total Performance Deficiency/ Fault Detection and Optimal Comfort Control

Author(s)
Jiang Yilin,
Wang Junke,
Song Li,
Tang Choon Yik,
Wang Gang,
Brambley Michael,
Ejenakevwe Kevwe
Organization(s)
University of Oklahoma,
University of Miami,
Pacific Northwest National Laboratory,
PNNL,
U.S. Department of Energy,
DOE
Publication Date
Report examining the use of smart thermostat data to detect performance degradation and optimize comfort control in home AC systems.

Ductless Mini-Split Heat Pump Comfort Evaluation

Author(s)
Roth Kurt,
Sehgal N,
Akers Craig
Organization(s)
Fraunhofer Center for Sustainable Energy Systems,
Fraunhofer CSE,
National Renewable Energy Laboratory,
NREL
Publication Date
Research report with results from field tests in two homes in Austin, Texas, from October 2011 to June 2012 to evaluate the comfort performance of ductless mini-split heat pumps

Efficient Multifamily Homes in a Hot Humid Climate by Atlantic Housing Partners

Author(s)
Chasar Dave,
Martin Eric
Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
Florida Solar Energy Center,
FSEC
Publication Date
Report demonstrating how the initiative achieves Building America (BA) goals of 30%-50% energy savings in multifamily dwellings in the hot-humid climate zone.

Energy Savings From System Efficiency Improvements in Iowa's HVAC SAVE Program

Author(s)
Baker Julie D,
Brand Larry,
Wells J,
Yee Shannon
Organization(s)
Partnership for Advanced Residential Retrofit,
PARR,
Midwest Energy Efficiency Alliance,
MEEA,
U.S. Department of Energy,
DOE
Publication Date
Report using pre- and post-system upgrade data to analyze the energy savings associated with Iowa's HVAC SAVE program for space heating.

Evaluating Moisture Control of Variable-Capacity Heat Pumps in Mechanically Ventilated, Low-Load Homes in Climate Zone 2A

Author(s)
Martin Eric,
McIlvaine Janet E R,
Chasar Dave,
Beal David,
Withers Charles R
Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
Florida Solar Energy Center,
FSEC
Publication Date
This report evaluates the performance of variable-capacity comfort systems, with a focus on inverter-driven, variable-capacity systems, as well as proposed system enhancements.

Evaluation of Northern Illinois Residential Retrofit Delivery Practices

Author(s)
Brand Larry,
Kerr Ryan,
Rowley Patricia
Organization(s)
Partnership for Advanced Residential Retrofit,
PARR,
National Renewable Energy Laboratory,
NREL,
Gas Technology Institute,
GTI Energy,
Midwest Energy Efficiency Alliance,
MEEA,
CNT Energy,
Elevate Energy,
Future Energy Enterprises,
U.S. Department of Energy,
DOE
Publication Date
Document reviewing four cold-climate northern Illinois energy efficiency retrofit programs to identify practices, tools, and approaches to streamline and reduce costs of comprehensive retrofits, and to improve the consistency of audit and retrofit delivery practices across different programs.

Expert Meeting Report: Achieving the Best Installed Performance from High-Efficiency Residential Gas Furnaces

Author(s)
Brand Larry
Organization(s)
Partnership for Advanced Residential Retrofit,
PARR,
National Renewable Energy Laboratory,
NREL,
Gas Technology Institute,
GTI Energy,
U.S. Department of Energy,
DOE
Publication Date
Expert meeting identifying installation practices that provide the best installed efficiency for residential gas furnaces, explain how AFUE and field efficiency can differ, and investigate the impact of installation practices on the efficiency and long-term durability of the furnace.

Expert Meeting Report: Simplified Space Conditioning Strategies for Energy Efficient Houses

Author(s)
Stecher Dave
Organization(s)
Integrated Building and Construction Solutions,
IBACOS,
National Renewable Energy Laboratory,
NREL,
U.S. Department of Energy,
DOE
Publication Date
Expert meeting held to discuss simplified space conditioning systems in low load homes, including the relationship between advanced thermal enclosures, space conditioning systems and comfort.

Expert Meeting: Optimized Heating Systems Using Condensing Boilers and Baseboard Convectors

Author(s)
Arena Lois
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
National Renewable Energy Laboratory,
NREL,
Steven Winter Associates,
SWA
Publication Date
Expert meeting held to review and discuss results and future plans for research to improve the performance of hydronic heating systems using condensing boilers and baseboard convectors.

Field Monitoring Protocol: Mini-Split Heat Pumps

Author(s)
Christensen Dane,
Tomerlin Jeff,
Winkler Jon,
Hancock Ed,
Fang Xia
Organization(s)
National Renewable Energy Laboratory,
NREL,
Mountain Energy Partnership,
U.S. Department of Energy,
DOE
Publication Date
Information sheet with an analysis of mini split heat pump systems.

Field Validation of a Smart Energy Recovery Ventilation System Using Low-Cost Indoor Air Quality Sensors

Author(s)
Hains Bryant,
Abi Saab Rawad,
Giddings Tylesha,
Magande Hugh,
Grygier Jenna,
Liang Donghai,
Gao Han,
Sarnat Jeremy,
Horner Elliott
Organization(s)
Southface
Publication Date
Technical report on a field validation study that utilizes low-cost indoor air quality sensors to assess a smart ventilation system's effectiveness in maintaining acceptable indoor humidity in low-load homes in humid environments, revealing that while the smart ventilation algorithm demonstrated...

Heat Pump Retrofit Strategies for Multifamily Buildings

Author(s)
Steven Winter Associates,
Natural Resources Defense Council
Organization(s)
SWA,
NRDC
Publication Date
Report describing the various heat pump retrofit options for multifamily buildings in the U.S., segmented by building typology and heating system, to support better environmental, economic, and health outcomes.

Hot Water Solutions

Author(s)
Northwest Energy Efficiency Alliance
Organization(s)
NEEA
Publication Date
Website for consumers describing heat pump water heater technology and linking to retailers and installers.

HVAC A Guide for Contractors to Share with Homeowners, Volume 14

Author(s)
Gilbride Theresa L,
Baechler Michael C,
Hefty Marye G,
Hand James R,
Love Pat M
Organization(s)
Pacific Northwest National Laboratory,
PNNL,
Oak Ridge National Laboratory,
ORNL,
U.S. Department of Energy,
DOE
Publication Date
Report providing information about energy-efficient heating, ventilation, and cooling (HVAC) equipment options to help homeowners cut their energy use, reduce their carbon footprint, and increase their homes comfort, health, and safety.

Improved Modeling of Residential Air Conditioners and Heat Pumps for Energy Calculations

Author(s)
Cutler Dylan,
Winkler Jon,
Kruis Neal,
Christensen Craig B,
Brandemuhl Michael J
Organization(s)
National Renewable Energy Laboratory,
NREL,
University of Colorado,
CU
Publication Date
Report presenting improved air conditioner (AC) and heat pump (HP) modeling methods in the context of whole-building simulation tools.

Improving Gas Furnace Performance: A Field and Laboratory Study at End of Life

Author(s)
Brand Larry,
Baker Julie D,
Yee Shannon
Organization(s)
Partnership for Advanced Residential Retrofit,
PARR
Publication Date
Report examining the impacts that common installation practices and age- induced equipment degradation may have on the installed performance of natural gas furnaces, as measured by steady-state efficiency and AFUE.

Integrated Ventilation System Increases Energy Efficiency and Ease of Installations

Author(s)
National Renewable Energy Laboratory
Organization(s)
NREL
Publication Date
Fact sheet describing the newly developed Ventilation-Integrated Comfort System (VICS) that reduces space requirements and eliminates costly ductwork for separate heating, cooling, and ventilation systems, all while enhancing performance, addressing the demand for energy-efficient homes, and...

Interaction between Heat Pump Water Heaters or Other Internal Point Source Loads and a Central Heating System

Author(s)
Widder Sarah H,
Metzger Cheryn E,
McIntosh Joshua A,
Petersen Joseph M
Organization(s)
Northwest Energy Efficiency Alliance,
NEEA,
Pacific Northwest National Laboratory,
PNNL
Publication Date
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.

Low-Cost Solar Water Heating Research and Development Roadmap

Author(s)
Hudon Kate,
Merrigan Tim,
Burch Jay,
Maguire Jeff
Organization(s)
National Renewable Energy Laboratory,
NREL
Publication Date
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.

Measure Guideline: Combined Space and Water Heating Installation and Optimization

Author(s)
Bohac Dave,
Schoenbauer Ben,
Huelman Patrick H
Organization(s)
NorthernSTAR Building America Partnership,
NorthernSTAR,
University of Minnesota,
UMN
Publication Date
Report describing the installation and operation of forced-air heating and domestic hot water combi systems in residential homes.

Measure Guideline: Condensing Boilers - Control Strategies for Optimizing Performance and Comfort in Residential Applications

Author(s)
Arena Lois
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
Steven Winter Associates,
SWA,
National Renewable Energy Laboratory,
NREL
Publication Date
Document intended for designers and installers of hydronic heating systems interested in maximizing the overall system efficiency of condensing boilers when coupled with baseboard convectors. It is applicable to new and retrofit projects.

Measure Guideline: Condensing Boilers - Optimizing Efficiency and Response Time During Setback Operation

Author(s)
Arena Lois
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
Steven Winter Associates,
SWA,
National Renewable Energy Laboratory,
NREL
Publication Date
Report providing step-by-step instructions for heating contractors and hydronic designers for selecting the proper control settings to maximize system performance and improve response time when using a thermostat setback.

Measure Guideline: Heat Pump Water Heaters in New and Existing Homes

Author(s)
Shapiro Carl,
Puttagunta Srikanth,
Owens Douglas
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
National Renewable Energy Laboratory,
NREL,
Steven Winter Associates,
SWA
Publication Date
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.

Measure Guideline: High Efficiency Natural Gas Furnaces

Author(s)
Brand Larry,
Rose William B
Organization(s)
Partnership for Advanced Residential Retrofit,
PARR,
National Renewable Energy Laboratory,
NREL,
Gas Technology Institute,
GTI Energy
Publication Date
Document covering installation of high efficiency gas furnaces, including when to install a high efficiency gas furnace as a retrofit measure, how to identify and address risks, and steps to follow for the selection and installation process.

Measured Performance of a Low Temperature Air Source Heat Pump

Author(s)
Johnson R K
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
Steven Winter Associates,
SWA,
U.S. Department of Energy,
DOE
Publication Date
Research study outlining results of monitoring a low temperature heat pump.

Mini-Split Heat Pumps Multifamily Retrofit Feasibility Study

Author(s)
Dentz Jordan,
Henderson Hugh,
Podorson David
Organization(s)
Advanced Residential Integrated Energy Solutions,
ARIES,
Levy Partnership,
U.S. Department of Energy,
DOE,
National Renewable Energy Laboratory,
NREL
Publication Date
This report investigates whether mini-split heat pumps can live up to their potential for one market segment: multifamily retrofits.

NREL Delivers In-Home HVAC Efficiency Testing Solutions

Author(s)
National Renewable Energy Laboratory,
U.S. Department of Energy
Organization(s)
NREL,
DOE
Publication Date
Document on the development of two simple in-home efficiency test methods that can be used by technicians, researchers, or interested homeowners to verify the correct operation and energy efficiency of a homes air conditioning and heating equipment.

Residential Cold Climate Heat Pump Challenge

Author(s)
U.S. Department of Energy
Organization(s)
DOE
Publication Date
Webpage describing a DOE Cold Climate Heat Pump Challenge. The challenge engages industry partners and focuses around the Cold Climate Heat Pumps, a more environmental and efficient heating alternative to traditional heating.

Residential Ground Source Heat Pumps with Integrated Domestic Hot Water Generation: Performance Results from Long-Term Monitoring

Author(s)
Stecher Dave,
Allison Katherine
Organization(s)
Integrated Building and Construction Solutions,
IBACOS,
National Renewable Energy Laboratory,
NREL,
American Society of Heating Refrigerating and Air-Conditioning Engineers,
ASHRAE
Publication Date
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.

Room Air Conditioners

Author(s)
Energy Saver,
U.S. Department of Energy
Organization(s)
DOE
Publication Date
Web page providing an overview of room-level air conditioning systems such as window units and mini-splits.

Smart Ventilation Controls Boost Energy Efficiency and Indoor Air Quality

Author(s)
Burkett Helen,
Martin Eric
Organization(s)
National Renewable Energy Laboratory,
NREL
Publication Date
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...