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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 - 44 of 44

2023 (2020) Standard for Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment, AHRI Standard 210/240

Author(s)
Air-Conditioning Heating and Refrigeration Institute
Organization(s)
AHRI
Publication Date
Performance rating standards for unitary air-conditioners and unitary air-source heat pumps, including definitions, classifications, testing, rating, and operating requirements, as well as minimum data requirements for published ratings and markings.

A Feasibility Study: Ductless Hydronic Distribution systems with Fan Coil Delivery

Author(s)
Springer David,
Dakin Bill,
Backman Christine
Organization(s)
Alliance for Residential Building Innovation,
ARBI,
National Renewable Energy Laboratory,
NREL,
Davis Energy Group
Publication Date
Research study estimating potential energy savings relative to conventional ducted air distribution, and identifying equipment requirements, costs, and barriers.

Air Source Heat Pumps Tax Credit

Author(s)
ENERGY STAR
Organization(s)
ENERGY STAR,
U.S. Environmental Protection Agency,
EPA
Publication Date
This is a federal tax credit for complying air source heat pumpe. Units located in the "North" must meet ENERGY STAR's cold climate heat pump criteria.

Air-Source Heat Pump Sizing and Selection Guide

Author(s)
Strack Terry,
Sager Jeremy
Organization(s)
Natural Resources Canada,
NRC,
CanmetENERGY
Publication Date
Document providing step-by-step guidance to sizing air-source heat pumps for a cold climate.

Air-Source Heat Pumps

Author(s)
U.S. Environmental Protection Agency
Organization(s)
ENERGY STAR,
EPA
Publication Date
Webpage describing the functionality and benefits of switching to Air Source Heat Pumps, as well as linking to sets of products, rebates, most efficient ASHPs, and providing consumer aid for purchasing an ASHP.

Bay Ridge Gardens - Mixed Humid Affordable Multifamily Housing Deep Energy Retrofit

Author(s)
Lyons James,
Moore Mike,
Thompson Margo
Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
Newport Ventures,
U.S. Department of Energy,
DOE
Publication Date
Report summarizing commissioning, short-term testing, utility bill data analysis, and results of on-site monitoring of a deep energy retrofit.

CEE Residential Product Directory

Author(s)
Consortium for Energy Efficiency; Air-Conditioning,
Heating,
and Refrigeration Institute
Organization(s)
CEE; AHRI
Publication Date
AHRI-hosted directory of residential products meeting CEE's highest tier

Cold Climate Air Source Heat Pump Specification, Version 4.0

Author(s)
Northeast Energy Efficiency Partnerships
Organization(s)
NEEP
Publication Date
Specification defining performance and reporting requirements to meet the voluntary “Cold Climate Air Source Heat Pump Specification” (ccASHP Specification) for air source heat pumps suited to heat efficiently in cold climates (IECC cz 4 and higher).

Cold Climate DHP Specification

Author(s)
Northwest Energy Efficiency Alliance
Organization(s)
NEEA
Publication Date
Webpage outlining how to optimize the installations and performance of mini-split heat pump systems. As well, it discusses a set of design considerations for multi-level homes, low load homes, and heat distribution to rooms without a heat source.

Cooling and Heating Season Impacts of Right-Sizing of Fixed- and Variable-Capacity Heat Pumps With Attic and Indoor Ductwork

Author(s)
Cummings James B,
Withers Charles R,
Kono Jamie E
Organization(s)
Florida Solar Energy Center,
FSEC,
U.S. Department of Energy,
DOE,
Building America Partnership for Improved Residential Construction,
BA-PIRC
Publication Date
Report on experiments comparing the cooling and heating seasonal and peak demand performance of different variable-capacity air conditioning and heat pump units.

Energy Savings and Peak Demand Reduction of a SEER 21 Heat Pump vs. a SEER 13 Heat Pump with Attic and Indoor Duct Systems

Author(s)
Cummings James B,
Withers Charles R
Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
Florida Solar Energy Center,
FSEC
Publication Date
Research study describing experiments run in an unoccupied 1600 square foot house to evaluate the delivered performance as well as the relative performance of a SEER 21 variable capacity heat pump versus a SEER 13 heat pump.

ENERGY STAR Most Efficient 2021 Criteria Development

Author(s)
ENERGY STAR
Organization(s)
ENERGY STAR,
U.S. Environmental Protection Agency,
EPA
Publication Date
Webpage recognizing the most efficient products among those that are ENERGY STAR certified.

ENERGY STAR® Certified Mini Split Heat Pumps

Author(s)
ENERGY STAR
Organization(s)
U.S. Environmental Protection Agency,
EPA,
ENERGY STAR
Publication Date
Factsheet describing mini split heat pumps and their benefits for consumers.

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.

Foundation Heat Exchanger Model and Design Tool Development and Validation

Author(s)
Spitler Jeffrey D,
Fisher Daniel E,
Cullin James R,
Xing Lu,
Lee Edwin,
Fan David D,
Rees Simon J
Organization(s)
Oklahoma State University,
OSU,
De Montfort University,
DMU,
Oak Ridge National Laboratory,
ORNL
Publication Date
Report describing a project aimed at developing validated models and design tools for foundation heat exchangers.

Heat & Cool Efficiently

Author(s)
ENERGY STAR
Organization(s)
ENERGY STAR
Publication Date
A ENERGY STAR guide on efficient heating, ventilation and cooling systems in residential homes.

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.

Heat Pumps for Heating and Cooling

Author(s)
Town of Concord Massachusetts
Organization(s)
Town of Concord Massachusetts
Publication Date
Webpage providing basic information on various types of heat pumps and their applications in Massachusetts.

HVAC – Cold Climate Heat Pump Sizing

Author(s)
Pacific Northwest National Laboratory,
U.S. Department of Energy
Organization(s)
PNNL,
DOE
Publication Date
Webpage providing curriculum with links to presentations and problem sets for teaching an understanding of sizing cold climate heat pumps.

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.

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.

NEEP’s Cold Climate Air Source Heat Pump List

Author(s)
Northeast Energy Efficiency Partnerships
Organization(s)
NEEP
Publication Date
Database compiling extended capacity data for numerous cold climate heat pump manufacturers and models.

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.

Refrigerant Leak Prevention: Best Practices – Tech Tip

Author(s)
New York State Energy Research and Development Authority
Organization(s)
NYSERDA
Publication Date
Fact sheet describing best practices in installing leak-free refrigerant systems, including specifics on creating flare joints and brazed joints, pressure testing, vacuum testing, and charging the system with refrigerant.

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.

Retrofitting Forced Air Combi Systems: A Cold Climate Field Assessment

Author(s)
McAlpine Jake,
Bohac Dave,
Schoenbauer Ben,
Hewett Martha,
Rothgeb Stacey
Organization(s)
NorthernSTAR Building America Partnership,
NorthernSTAR,
University of Minnesota,
UMIN
Publication Date
This project analyzed combined condensing water heaters or boilers and hydronic air coils to provide high efficiency domestic hot water (DHW) and forced air space heating. Called "combi" systems, they provided similar space and water heating performance less expensively than installing two...

Sensitivity Analysis of Installation Faults on Heat Pump Performance

Author(s)
Piotr Domanski,
Hugh Henderson,
Payne W Vance
Organization(s)
National Institute of Standards and Technology,
NIST
Publication Date
Technical study exploring the impact of different installation faults on heat pump performance in a single-family house.

Strategies for Energy Efficient Remodeling: SEER 2003 Case Study Report

Author(s)
Drumheller S Craig,
Wiehagen Joseph
Organization(s)
NAHB Research Center,
National Renewable Energy Laboratory,
NREL
Publication Date
Report providing information based on research and case studies, to remodelers and consumers about opportunities to increase home energy performance.

Strategy Guideline: HVAC Equipment Sizing

Author(s)
Burdick Arlan
Organization(s)
Integrated Building and Construction Solutions,
IBACOS,
National Renewable Energy Laboratory,
NREL,
U.S. Department of Energy,
DOE
Publication Date
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.

Swapping ECM for PSC fan motor

Author(s)
Holladay Martin
Organization(s)
Green Building Advisor,
GBA
Publication Date
Question and Answer article in Energy Design Update describing the cost and savings benefits of electronically commutated motors (ECMs) for HVAC equipment.

Systems Evaluation at the Cool Energy House

Author(s)
Puttagunta Srikanth,
Williamson James
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
Steven Winter Associates,
SWA,
U.S. Department of Energy,
DOE
Publication Date
Report providing performance results of a home's heat pump water heater and whole-house dehumidifier over a six-month period.

Understanding HPWH Interaction with Space Conditioning Systems in the Field

Author(s)
Larson Ben
Organization(s)
Ecotope,
American Council for an Energy-Efficient Economy,
ACEEE
Publication Date
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.