Library

Study characterizing how foundation heat exchangers (FHXs) used in residential ground source heat pump systems represent a potential cost savings due to their lesser first cost over other types of heat exchangers.

Information sheet with an analysis of mini split heat pump systems.

Report on field monitoring of inverter-driven ASHPs in cold-climate homes.

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...

This five-page brochure contains basic information on flood cleanup with illustrations and links to more detailed information.

Brochure on specifications for PV systems.

Report investigating the status of the geothermal heat pump (GHP) industry and technology in the United States, assembling GHP energy savings potential, identifying key barriers to application of GHPs, and identifying actions that could accelerate adoption of GHPs.

Website with information about ENERGY STAR criteria for geothermal heat pumps.

Article describing EV charging, charger features, and other considerations for picking and installing EV chargers.

Fact sheet defining a grid-interactive efficient building and its benefits.

Website highlighting the DOE Building Technologies Office Grid-interactive Efficient Buildings Initiative, including technical reports, other publications, resources, and presentations.

Report evaluating HVAC building technologies based on their ability to provide grid services and the type of value provided, including efficiency, load shed, load shift, and modulation.

Report evaluating lighting and electronic building technologies based on their ability to provide grid services and the type of value provided, including efficiency, load shed, load shift, and modulation.

Report providing an introduction to core concepts of GEBs, and explaining how flexible building loads can be integrated and controlled to benefit consumers, the grid, and society more broadly.

Report addressing the current state of these technologies and the challenges of adapting these to the GEB context.

Website article discussing the economics of ground source heat pumps.

Report presenting a cold climate project examining and alternative approach to ground source heat pump ground loop design.

Factsheet describing the uses and benefits of ground-source heat pumps for affordable housing, assisted living, dorms and hotels.

Factsheet describing how to install air source heat pumps for residential heating and cooling in cold climates.

Factsheet describing how to install air source heat pumps for residential heating and cooling in cold climates.

Guide by the Northeast Energy Efficiency Partnerships on how to size heat pumps in a cold climate.

A ENERGY STAR guide on efficient heating, ventilation and cooling systems in residential homes.

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.

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.

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

A website detailing initiatives on the east coast for the installation and use of high efficiency products.

Calculator designed to assist in determining what kind of charger to get, estimating the minimum charger speed needed for expected daily driving - which may only require a home outlet.

A comprehensive list of all ENERGY STAR home performance programs.

Website for consumers describing heat pump water heater technology and linking to retailers and installers.

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

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

Factsheet describing how to partially install a heat pump in a manufactured home in the manufactured home factory.

Report providing the results of an analysis of humidity control and variable refrigerant flow (VRF) system efficiency in three new multifamily buildings in New York, NY.

Webpage providing curriculum with links to presentations and problem sets for teaching an understanding of sizing cold climate heat pumps.

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.

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.

Software tool available free online that can help calculate heating and cooling requirements to accurately size HVAC equipment in as little as 15 minutes.

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

Website providing comparison charts and reviews of hybrid inverters for solar power systems.

Report evaluating the relative effectiveness of various control and distribution strategies to improve hydronic space heating performance in existing low-rise multifamily buildings

Report presenting improved air conditioner (AC) and heat pump (HP) modeling methods in the context of whole-building simulation tools.

Presentation on Improving Air-Conditioner and Heat Pump Modeling.

Report examining the impacts that common installation practices and age- induced equipment degradation may have on the installed performance of natural gas furnaces, as measured by steady-state efficiency and AFUE.

Fact sheet describing the newly developed Ventilation-Integrated Comfort System (VICS) that reduces space requirements and eliminates costly ductwork for separate heating, cooling, and ventilation systems, all while enhancing performance, addressing the demand for energy-efficient homes, and...

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.

Report describing the results of a 21-home field study investigating the effectiveness and failure rates of whole-house mechanical ventilation systems installed in Florida homes over the last 15 years.

Research report discussing the reduction of HVAC energy consumption to meet U.S. greenhouse gas targets and DOE's energy-efficient building goals. It introduces iComfort, an IoT-based system for optimizing home comfort and energy savings.

Report on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.

Guidance on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.