Library

Document providing guideance and considerations for duct design in an energy efficient house.

Study describing efforts and outcomes in developing color-pigmented roofing products with coatings to increase solar reflectance.

Report on experiments comparing the cooling and heating seasonal and peak demand performance of different variable-capacity air conditioning and heat pump units.

Report outlining the issues with using existing ducts with a new low-load HVAC system, which reduces throw at supply registers causing decreased mixing of supply and room air, leading to potential thermal comfort complaints.

Report identifying two barriers that limit the ability of builders to explore opportunities for higher levels of energy efficiency in housing: the use of duct system materials that inherently achieve airtightness and are right-sized for low-load houses, and, the ability to air seal fire separation...

Report about an experimental evaluation conducted on a night sky cooling system designed to substantially reduce space cooling needs in homes in North American climates.

DOE-sponsored report describing a study investigating condensation buildup on windows when using insulating shades.

Factsheet profiling a simple modification that can be made to window air-conditioners to improve their energy efficiency.

Report providing step-by-step instructions for heating contractors and hydronic designers for selecting the proper control settings to maximize system performance and improve response time when using a thermostat setback.

This report investigates whether mini-split heat pumps can live up to their potential for one market segment: multifamily retrofits.

Report describing the experimentally evaluated potential of a novel residential night cooling concept.

Webpage describing a DOE Cold Climate Heat Pump Challenge. The challenge engages industry partners and focuses around the Cold Climate Heat Pumps, a more environmental and efficient heating alternative to traditional heating.

Report evaluating mechanical AC precooling strategies in homes as a method for improving the load factor by shifting cooling operation from on-peak to off-peak hours.

DOE report characterizing the installed base of windows and window coverings, and how users operate window coverings in order to enable precise quantification of energy savings.

Web page providing an overview of room-level air conditioning systems such as window units and mini-splits.

Information sheet describing how to select a properly sized water heater based on household usage patterns, peak demand, and heater type—whether tankless, solar, or storage-based—to ensure efficiency and adequate hot water supply.