Library

Journal article reporting on field experience of unvented cathedralized (UC) attics in several environments in the United States.

Report about field testing that characterizes the uniformity of room-to-room ventilation air distribution under various operating conditions by examining multi-zone tracer gas decay curves and calculating local age-of-air.

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...

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

Research report assessing the moisture and cooling load impacts of airtightness and mechanical ventilation in homes in hot-humid climates.

Research study outlining savings from reducing air infiltration, with and without the addition of mechanical ventilation, using two identical laboratory homes designed to model existing Florida building stock.

Article describing methods of smoke control in buildings.

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.

Article describing issues with attic ventilation fans and why the state of Georgia residential code does not allow plug-in attic ventilation fans.

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.

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

Report explaining the issues and concerns with conventional ventilated crawlspaces and to outline prescriptive measures for improvements that will create healthier and more durable spaces.

Report describing the use of fresh air ventilation systems to eliminate the formation of icicles and ice dams along the eaves of roofs.

Report about indoor air quality related to indoor mold growth.

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.

Report describing the advantages and best practices for installing heat pump water heaters (HPWH), highlighting their improved energy efficiency, reliability, and critical considerations such as condensate management, proper sizing, and optimal installation location to enhance performance and...

The Heat Pump Water Heater Installation Tool helps contractors, installers, and homeowners through the decision-making process for heat pump water heater (HPWH) product selection and installation, with a focus on overcoming installation barriers.

Report describing the significant potential for energy use reductions through heat pump water heaters, which have been a crucial part of Northwest power plans for decades and have recently achieved substantial savings with new integrated models and climate specifications.

Report describing the features, benefits, and best practices for the design and installation of heat pump water heaters in new low-rise multifamily buildings, highlighting their efficiency, reliability, and contribution to decarbonization goals.

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.

Guide providing detailed selection and installation instructions for heat pump water heaters.

Provides consumers with general information on solar water heating systems and how to select a contractor.

Case study of new home construction in the hot-dry and mixed-dry climate zones.

Best Practices document providing an introduction to current photovoltaic and solar thermal building practices.

Website providing information on low-energy and standard cooling systems, with a focus on saving energy.

Website providing certified rating programs to help manufacturers, builders, contractors and homeowners compare performance of ventilation products for air flow, sound, and other performance characteristics.

Report on a project that enhanced the HWSIM distribution system model to more accurately model pipe heat transfer.

Article describing the factors that can lead to inefficient hot water distribution systems in homes.

Guide describing how to choose energy-efficient water heaters, including heat pump models, with tips on installation, rebates, and incentives for maximizing energy savings.

Article describing the impact of stack effect on building performance, highlighting how pressure differences caused by temperature and height affect air infiltration and exfiltration, and detailing strategies like compartmentalization and distributed mechanical systems to manage airflow and maintain...

ENERGY STAR webpage describing how a heat pump water heater works.

Website with articles on home ventilation and indoor air quality.

Article describing considerations for choosing a room-level air cleaner to improve indoor air quality.

Article from Washington Post on passive cooling measures for homes during extreme heat.

Report describing the identification of barriers and proposed practical solutions for the design, installation, and market adoption of heat pump water heaters in new low-rise multifamily housing, focusing on studio and one-bedroom units.

Paper providing a comprehensive overview of HVAC system design considerations and challenges specific to multifamily residential buildings, focusing on optimizing performance and addressing common issues.

Publication specifying HVI’s prescriptive procedures for testing and rating airflow of residential ventilation products in accordance with ANSI consensus standards.

Publication describing the requirements and procedures for the certified performance ratings program for residential ventilation products administered by the Home Ventilating Institute.

Website providing an online directory of more than 3,600 residential ventilation products lisiting flowrates, sones, watts, and other performance metrics; all listed products have been tested by the Home Ventilating Institute.

Journal article presenting modeling of residential gas water heaters via dynamic simulation models to determine the effect of the pilot light on their annual energy consumption.

The study described in this white paper is based on building energy modeling with an important focus on the indoor humidity impacts of ventilation.

Report documenting the results of a NYSERDA-funded research project to demonstrate the costs and benefits of a best practice systems approach to improving exhaust ventilation system performance in five multifamily buildings in New York State.

Study using simulations to understand the impact that shading and natural ventilation would have had on the survivability of non-air-conditioned buildings during the 2021 heat wave in the Pacific Northwest.

Fact sheet providing information on how to identify issues and improve performance in central exhaust systems.

Report detailing natural ventilation and passive airflow systems.

This research study used pollutant measurements, home inspections, diagnostic testing and occupant surveys to assess IAQ in 24 new or deeply retrofitted homes designed to be high performance green buildings in California.

Article describing the correct installation of clothes dryer exhaust ducts.

Report describing the performance, economics, space heating impacts, and user satisfaction of heat pump water heaters (HPWHs) in the upper Midwest, based on a field study and survey of participants in the MECA HPWH incentive program.