Library

Document providing design guidance and software tool information for forced-air HVAC systems.

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.

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

Report outlining the issues with using existing ducts with a new low-load HVAC system, which reduces throw at supply registers causing decreased mixing of supply and room air, leading to potential thermal comfort complaints.

Information sheet with HVAC duct insulation, testing, maintenance and performance information.

Report identifying two barriers that limit the ability of builders to explore opportunities for higher levels of energy efficiency in housing: the use of duct system materials that inherently achieve airtightness and are right-sized for low-load houses, and, the ability to air seal fire separation...

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

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 describing an investigation into multiple occupancy-based ventilation control strategies and the associated energy savings.

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

This study evaluates the energy, humidity and indoor air quality implications of residential ventilation cooling in all US IECC climate zones.

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

Research study analyzing the effects a nonlinear enthalpy profile has on thermal performance and expected energy benefits for PCM-enhanced insulation.

Document comparing simulation results from a modified version of the EnergyGauge program to include various HVAC runtime strategies.

Online textbook describing energy, including energy types, and energy use in homes.

Website from the U.S. Department of Energy providing consumers with information on saving energy and using renewable energy technologies.

Website with consumer information about residential heat pump systems.

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.

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.

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

Factsheet describing the benefits of purchasing and installing ENERGY STAR rated fans and ventilation products.

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.

Program criteria for central air conditioner and heat pump equipment.

Factsheet describing mini split heat pumps and their benefits for consumers.

Section 608 establishes EPA’s National Recycling and Emission Reduction Program designed to reduce emissions related to maintaining, servicing, repairing, and disposing of air conditioning or refrigeration equipment.

Research study evaluating operating conditions required to maintain uniform mixing, within high performance homes, under both heating and cooling conditions.

DOE-sponsored report describing the experimental setup and results of field studies on using interior cellular shading attachments to reduce solar heat gain in summer and reduce heat loss in winter.

DOE-sponsored report describing the experimental setup and results of field studies on using exterior fabric shading attachments to reduce solar heat gain, reduce glare, and improve comfort.

Research study that utilizes EnergyPlus equipped with the moisture capacitance model to analyze the indoor relative humidity in three home types.

DOE-sponsored report describing a study investigating the energy savings potential of cellular shades in homes.

Technical report presenting the results of an evaluation of homes using high-efficiency mini-split heat pumps to supplement the primary heating and cooling systems.

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.

Report detailing the effects of replacing PSC motors with more efficient, variable-speed motors.

DOE-sponsored report describing a study investigating condensation buildup on windows when using insulating shades.

Technical report describing the evaluation of four different ventilation strategies for providing make-up air in high-performance, new construction multifamily buildings in the Northeast, emphasizing the challenges posed by increasing airtightness standards and the variability of system performance...

Report describing research that helps inform best practices for air-sealing multifamily buildings in the Northeast.

Article describing RESNET guidance on evaporative coolers.

Article describing how evaporative coolers work and how to maintain them.

Web article describing the evolution of evaporative coolers, water usage of evaporative coolers, and links to information on selecting an evaporative cooler.

Article describing a study of the potential to use heat pumps to heat and cool homes across the United States, including cold climate locations like Alaska.

Article describing benefits of ECM motors and how they can be installed as retrofit motors in HVAC equipment.

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 describing meeting details for recommendations for applying water heaters in combination space and domestic water heating systems.