Library

Web page describing essential guidelines and recommendations for optimal installation of ductless heat pumps in cold climates, ensuring maximum heating performance and long-term satisfaction for homeowners, supported by research-backed insights and detailed resources.

Website containing commercial information related to air conditioning and heating.

Webpage describing how to improve a variable capacity heat pump's efficiency by not programming a deep setback on the thermostat.

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

Program criteria for central air conditioner and heat pump equipment.

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.

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

Report describing a laboratory assessment that provides insights into space requirements and venting strategies for heat pump water heaters (HPWH) to enhance retrofit installations and provide actionable guidance for manufacturers, designers, engineers, installers, and owners.

Report providing information for HVAC designers, installers, and consumers about air source heat pumps.

Factsheet describing techniques for installing ductless heat pumps in cold climate locations.

American Lung Association web page providing information on particulate matter and indoor air quality.

Report describing a laboratory assessment on the performance of Rheem 120-volt heat pump water heaters (HPWH), aimed at identifying optimal installation locations for these new "plug-in" models based on comprehensive testing under various conditions.

Standard that describes the minimum requirements for residential buildings to achieve acceptable indoor air quality via dwelling-unit ventilation, local mechanical exhaust, and source control. This version of the standard was published in the year 2022, and is available for preview and purchase at...

Presentation describing how to make a Corsi-Rosenthal Box for air cleaning.

Blog article summarizing the effects of extreme heat on air quality and lung health.

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.

Standard that provides procedures and methods for meeting minimum ventilation and indoor air quality requirements to engineers, design professionals, owners, and jurisdictional authorities where model codes have been adopted. This is the current version of the standard, which was published in the...

Webinar presenting best practices in HVAC design and commissioning

Article describing the impacts of wildfire smoke on indoor air quality and some ways ASHRAE is responding.