Library

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.

Brochure describing advanced framing techniques.

Document providing a roadmap to aid Habitat for Humanity affiliates in building high performing houses by using materials and techniques that are affordable, do not add any maintenance burden, and are volunteer friendly.

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.

Report providing testing methodology to evaluate structural rim header designs over openings up to 6 ft. wide and applicable to one- and two-story homes.

Report with test results that serve as a baseline of data for further material tests of other high-R wall systems and for comparison to whole-house wind pressure testing.

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

Report documenting short-term test results of the Shift House and compares the results of Passive House Planning Package and Building Energy Optimization modeling of the project.

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.

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

Article summarizing for potential homeowners items to check or demand from the builder in designing a home for a cold climate.

Website that explains and provides diagrams for covering up above-grade rigid foam insulation.

Information sheet presenting techniques for installing cellulose insulation.

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

An article and video of a breakdown on the preparation and installation of basement insulation.

Article from Montana State University Extension explaining how proper insulation techniques can greatly reduce the risks of ice dams on roofs in cold climate zones.

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.

Article describing issues with condensation in unvented attics insulated with open-cell spray foam.

Report detailing the design and construction of 10 new houses under the Wyandotte Neighborhood Stabilization Program 2.

Article outlining the casuses and solutions for ice dam problems.

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.

Research study describing the impact resistance performance of advanced framed wall systems with insulating sheathing as the primary sheathing from wind blown debris.

Video describing how a frost-protected shallow foundation (FPSF) is constructed and including use of a stay-in-place EPS (expanded polystyrene) footing form that provides insulation and simplifies the installation of frost-protected monolithic concrete slab foundations.

Video describing how a frost-protected shallow foundation (FPSF) is constructed and including use of a stay-in-place EPS (expanded polystyrene) footing form that provides insulation and simplifies the installation of frost-protected monolithic concrete slab foundations.

Article explaining installing cavity insulation.

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.

Fact sheet describing principles of insulating steam distribution and condensate return lines as an effective way to prevent energy loss.

A guide for users and energy raters of insulated siding as home insulation.

Article describing how insulated siding can save homeowners energy by providing continuous exterior insulation.

Website providing builders with information about meeting RESNET Grade 1 criteria when installing insulation.

Report describing the objective evaluation of space conditioning interactions between heat pump water heaters and home heating systems during winter 2016-2017, revealing a smaller than anticipated impact on space conditioning loads.

This webpage provides an interactive walk-through of the installation of a heat pump water heater in a home in Massachusetts, including how-to videos of the installation, video interviews with the homeowners, installer, and utility program partners, and visual tours of the home before and after...

Article outlining the use of spray polyurethane foam in residential buildings.

Research study describing field testing performed in 32 two-story Florida homes to characterize wind washing failures of the house air and thermal boundary.

Report discussing how to create livable space in the attic that meets IRC code requirements by either creating a ventilated roof assembly, or and unvented attic assembly.

The purpose for this document is to provide basic guidance on the use of proven installation techniques that can be used by installers to help ensure correct “dense pack” application of JM Spider® in drill & fill applications.

Article describing walls and moisture development on them.

Article from University of Arizona on keeping homes cool during extreme heat, both personal and system changes.

Information sheet providing links and resources for insulating basements in cold climates.

Article discussing the downside to recessed can lights.

Website providing information about Knauf Insulation.