Library

Fact sheet that details the steps needed to perform a combustion appliance safety inspection to determine if fossil fuel-fired appliances are operating safely under a depressurized condition.

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

List of commercial heat pump water heater systems that comply with NEEA's Advanced Water Heating Specification.

List of multifamily commercial heat pump water heater products that meet the NEEA Advanced Water Heating Specification Requirements.

Research report providing a comparison of the most common residential water heating technologies to determine energy-efficient and cost-effective water heating technologies are when subjected to a variety of typical operating conditions.

Report about a hybrid condensing water heater (thermal efficiency = 0.973, energy factor = 0.95) installed in an occupied home in Sacramento, California, and monitored for one year to determine the actual in situ efficiency.

Report telling consumers how radon gets into a home and how to reduce radon entry into a home.

Report describing the monitored long-term performance of two solar domestic water heating systems in northern climates.

Technical bulletin addressing surfacing options in regards to composite wood panels and their emission barrier capabilities.

Article describing the causes of wood decay and moisture issues.

Research report describing the development of standardized test methods for PM2.5 and CO2 sensors enabling reliable, low-cost indoor air quality monitoring and improvement.

Webpage describing the benefits of installing insulation on a water heater, including descriptions of different types of tank insulation.

Webpage providing a guide for homeowners to follow when installing a water heater blanket on their electric resistance water heater.

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

Factsheet describing how to secure water heaters to resist seismic activity.

Free online tool for sizing central heat pump water heater systems.

Technical report evaluating the effects of heat pump water heaters on heating and cooling energy usage in laboratory homes.

A report describing six mechanical ventilation strategies that were evaluated for their ability to control indoor humidity levels over 14-day periods with simulated occupancy.

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

Webpage from U.S. Department of Energy describing using Earth-Sheltered home building techniques in hot climate zones.

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

This publication provides a set of best practices for improving indoor air quality in conjunction with energy upgrade work in homes.

Technical report describing the enhancement of energy efficiency in existing buildings through a systems approach, assessing airflow-focused retrofits for improved energy savings and indoor air quality, considering factors like air leakage, distribution system dynamics, duct leakage, and ventilation...

Informational guide describing the benefits, functionality, and cost savings of ENERGY STAR® certified heat pump water heaters, addressing common misconceptions and highlighting incentives.

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.

Report describing the performance, cost, and carbon impacts of unitary heat pump water heaters with load-shifting controls in a shared configuration for a multi-family project, highlighting significant savings in energy usage, CO2 emissions, and utility costs.

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 on the performance of range hood exhaust fans.

The main objective of this expert meeting was to bring together a group of experts intimately involved with issues related to assessing the performance of residential high efficiency water heating systems.

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

Fact sheet describing indoor air quality (IAQ), including information on common sources of indoor air pollutants and best practices for improving IAQ.

An engineering design guide for hydronic heat loops, discussing the features and advantages of condensing boilers.

Report outlining how Smart ventilation controls (SVC) balance energy consumption, comfort, and IAQ by optimizing mechanical ventilation operation to reduce the heating and/or cooling loads, improve management of indoor moisture, and maintain IAQ equivalence according to ASHRAE 62.2.

Report describing the in situ performance evaluation of newly released heat pump water heaters (HPWHs), highlighting their energy and cost savings potential compared to conventional electric resistance water heaters and other alternatives, based on data collected from installations in Massachusetts...

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...

ASHRAE Q&A addressing HVAC filtration and disinfection for reducing the spread of COVID-19.

A webpage discussing how water heater expansion tanks operate and how to repair them.

Page describing in detail four important actions you should consider to protect your health and indoor air quality (IAQ) when cleaning up after a flood.

Detailed information about Formaldehyde including health effects and strategies to reduce exposure.

Results from a research program testing airtightness, implications of air leakage and contaminant reduction over the garage-to-house interface.

Standard that applies to storage water heaters, instantaneous water heaters, and circulating water heaters including booster water heaters; the current version of this standard was published in the year 2019 and it is available for purchase along with a digital preview on the ANSI webstore page.

Brochure on specifications for solar thermal systems.

Report describing the cost-effectiveness and performance of all-electric, zero net energy multifamily buildings in California, detailing technical challenges and providing recommendations for design, construction, codes, standards, and operations to support future projects.

Document describing the emissions criteria for carpets, cushions, and adhesives to qualify as those with low volatile organic compound (VOC) emissions under the Carpet and Rug Institute's Green Label Plus Indoor Air Quality Testing Program.

Report about opportunities for ventilation when traditional methods are limited by weather conditions or by contaminants in the outdoor air.

Webpage describing how to guard homes and properties against wildfire, as well as what to do during a wildfire, whether sheltering in place or attempting evacuation.

Report about indoor air quality related to indoor mold growth.

Webpage that describes health problems that can be caused by secondhand smoke.

Informational guide describing the design, installation, and maintenance best practices and technical considerations for integrated Heat Pump Water Heaters in single-family and multifamily new construction.