This guide examines the operational cost impact of integrating ASHPs into propane-heated homes in Illinois.

This guide focuses on quality installations and best practices to optimize performance.

This presentation highlights market opportunities in Illinois by identifying customer needs and technical considerations. It discusses building value propositions and provides access to resources for program staff.

This tool recommends system design based on questions about ductwork, heating and cooling loads, and zones.

The NEEP report assesses air-source heat pump (ASHP) installation practices in cold climates, highlighting critical challenges and best practices for optimizing performance in residential and small commercial settings.

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.

The Building Science Education (BSE) Solution Center provides curated and free-to-use training materials on the fundamentals of building science.