Library

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).

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.

Report describing combined space- and water-heating (combi) systems using a high-efficiency direct-vent burner.

Report documenting the results of an in-depth evaluation of thermal comfort for two potential net zero-energy homes (NZEHs) in Massachusetts.

Report about instrumentation and limited short-term testing completed on a retrofit unoccupied test house in Fresno, California.

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.

Technical report detailing a study in which actual cooling loads are compared to modeled cooling loads.

Two hourly energy simulation software, BEopt and Energy Gauge USA, were compared to ensure accuracy and evaluate agreement on the impact of various energy efficiency improvements.

Article introducing the FTC’s new EnergyGuide label, including estimates of annual energy usage.

Website for CEE, the US and Canadian consortium of natural gas and electric efficiency program administrators.

Webpage with instructions for heat pump installers to choose the most suitable type of heat pump system, according to a project’s specific requirements.

Document for contractors detailing how to prioritize, control, and configure heat pumps in a residence that uses two heating systems.

Document for customers describing the benefits of two-system controls for homes, including information answering how, when, why, and how two-system controls with multiple heating sources are employed.

A website explaining how to properly dispose of old refrigeration and air-conditioning equipment.

A presentation describing the details of the ENERGY STAR Multifamily New Construction program requirements.

Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Lessons Learned chapter focuses on successful deep energy retrofit projects throughout the U.S.

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...

Technical report describing algorithms that use communicating thermostat heating data and that were developed to optimize customer adoption of energy conservation measures, enhancing the identification of retrofit opportunities, estimating post-retrofit energy savings, and enabling home-specific...

Report examining the use of smart thermostat data to detect performance degradation and optimize comfort control in home AC systems.

The main principle of smart ventilation used in this study is to shift ventilation from time periods with large indoor-outdoor temperature differences, to periods where these differences are smaller, and their energy impacts are expected to be less.

Website helping communities address coastal issues with data, tools, and training resources.

Online database with efficiency information about residential HVAC systems and commercial refrigeration equipment.

Website listing implementation timelines and links to various versions of the DOE Zero Energy Ready Home national program requirements.

PDF file explaining the DOE's Zero Energy Ready Home National Requirements (Rev. 04).

Checklist describing solar water heating recommendations per the DOE Zero Energy Ready Home program.

Webpage describing the successes and ongoing efforts of the Northwest Energy Efficiency Alliance's Go Ductless ductless heat pump program which successfully encouraged the installation of more than 150,000 minisplit heat pumps in the Northwest between 2010 and 2021.

Webpage describing the advantages and disadvantages of ductless mini-split air conditioner.

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

Factsheet describing methods for securing HVAC units to avoid damage during an earthquake.

Bulletin describing the components of ECM motors and comparing their efficiency with PSC motors.

Report demonstrating how the initiative achieves Building America (BA) goals of 30%-50% energy savings in multifamily dwellings in the hot-humid climate zone.

Website that lists references that can help you determine how to control you indoor air quality while combating an emergency.

U.S. Code of Federal Regulations energy and water conservation standards for consumer products including home appliances and HVAC equipment.

Research project addressing low-cost options that reduce monthly energy costs and improve the quality of life by enhancing comfort levels in low-income homes.

Website describing the U.S. Environmental Protection Agency's ENERGY STAR New Homes and Apartments program with links to builder and homeowner resources.

A FAQ explaining the purpose of the Energy Independence and Security Act, a law which sets energy efficiency standards for lightbulbs.

Article by Energy Saver on how to save energy with your thermostat.

Online reference containing general information about geothermal heat pumps.

Report investigating performance and energy savings potential of heat pump water heaters.

Report using pre- and post-system upgrade data to analyze the energy savings associated with Iowa's HVAC SAVE program for space heating.

Report from ENERGY STAR on HVAC design for homes.

ENERGY STAR factsheet describing the HVAC Quality Installation Program

A list of clothes dryers that made the EnergyStar Most Efficient list for 2021, delivering cutting technological innovation along with energy efficiency.

Webpage recognizing the most efficient products among those that are ENERGY STAR certified.

Webpage on the ENERGY STAR website that list products that exceed the ENERGY STAR minimum criteria for their category, with links to several product categories, including windows, HVAC, home appliances, and computer monitors.

Website showing compliance timelines for various versions of the ENERGY STAR Multi-Family New Construciton program requirements with links to national program requirements documents and checklists.

Webpage with links to documents providing the program requirements and checklists for ENERGY STAR Certified Multifamily Homes, national and regional program requirements.

Program criteria for central air conditioner and heat pump equipment.

Website for finding rebates and special offers near you on ENERGY STAR certified products. Products that earn the ENERGY STAR label meet strict energy-efficiency specifications set by the U.S. EPA helping you save energy and money while protecting the environment.

Webpage with links to documents providing the program requirements and checklists for ENERGY STAR Certified Single-Family New Homes.