Library

Report describing the various heat pump retrofit options for multifamily buildings in the U.S., segmented by building typology and heating system, to support better environmental, economic, and health outcomes.

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.

Presentation about heat pump water heater modeling using EnergyPlus.

Article discussing the advantages of using heat pumps and/or hydronic forced air heat instead of furnaces in high-performance homes.

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

Blog post about heat pump clothes dryers.

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

Report discussing the potential energy savings of new high-efficiency downlights, and the results of product testing to date.

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

Information sheet about air barriers.

Brochure describing insulation and air-sealing details.

Report providing an introduction to current photovoltaic and solar thermal building practices.

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

Report assessing slab-on-grade foundation insulation energy savings.

Report that considers a number of promising wall systems that can meet the requirement for better thermal control.

Research study presenting results of an existing home monitoring project designed to measure wall cavity moisture characteristics.

Research study investigating the factors influencing consumer adoption of HEDs and evaluating the resulting electricity consumption.

Online calculator for estimating payback of adding additional insulation to your house.

Web article about solar site assessment.

Homeowner guidance from EPA, FEMA, HUD, and NIH on dealing with radon following a natural disaster.

Report describing for homeowners how to protect their homes from flooding, 3rd Edition.

Guidebook that provides information on earthquake hazards that can damage homes, the design and retrofit of earthquake resistant housing, and how to find more information on earthquake safety.

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.

Report detailing an evaluation of Orlando Utilities Commission (OUC) residential energy efficiency demand side management (DSM) programs to assess their impacts and relative measures of energy and economic performance.

Resource that explains how water softeners work to reduce scale.

Report about measurements of three recent vintage dishwashers of very different efficiencies showing that while they are substantially more efficient than older dishwashers.

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

Website with articles on home ventilation and indoor air quality.

Companion document to the Indoor airPLUS Construction Specifications, providing guidance on identifying compliant products, including industry databases and examples of product labeling.

Information sheet presenting techniques for installing cellulose insulation.

Blog entry describing methods for insulating basement walls on the interior or exterior.

Article describing how to use radiator inlet orifices optimize two-pipe steam heating systems.

Website blog with guidance about calculating heat-loss.

A structural insulated panel (SIP) roof has no embedded lumber in the structure, and therefore nothing substantial for attaching PV array and solar hot water mounts. Single or double lumber splines could be put into the panels, or I-joists at 4-foot intervals could be added.

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.

Factsheet describing re-siding retrofits containing exterior insulation and window upgrades aimed at improved energy savings and comfort.

Fact Sheet describing the need for supplemental dehumidification, dehumidifier configuration options, and design considerations.

Article presenting the 2008 update on the 2006 details on when required hurricane mitigation retrofits are required and the cost cap on required hurricane mitigation retrofits.

Code describing the requirements for existing site-built single-family homes to receive roof-to-wall retrofits when re-roofing.

Report describing the hurricane retrofit guide with focus on walls and wooded framed walls.

Report providing information about energy-efficient heating, ventilation, and cooling (HVAC) equipment options to help homeowners cut their energy use, reduce their carbon footprint, and increase their homes comfort, health, and safety.

Correcting pressure imbalances in your HVAC system can result in a healthier, more efficient home.