This directory includes guides from Building America's Solution Center that cover various heat pump technologies and topics such as sizing, installation, best practices, and more.

The Building America Solution Center provides access to expert information on hundreds of high-performance construction topics, including air sealing and insulation, HVAC components, windows, indoor air quality, and much more.

This database contains specifications for cold climate designations across various system types, along with an accompanying product list.

This product list features Cold Climate Air Source Heat Pumps (ccASHP) that meet the latest ccASHP Specification requirements. It includes systems with specified performance levels and reported performance standards.

This calculator estimates annual heating costs for various heating systems.

This calculator allows users to perform unlimited load calculations, with the option to purchase printable reports.

This website offers several free and purchasable load calculation tools.

This directory includes resources, such as videos, calculation tools, guides, case studies, and more.