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

This guide examines the operational cost impact of integrating ASHPs into all-electric homes in Illinois. It has been replaced by the Savings Calculator on the GoElectric site for customers.

This guide analyzes the operational cost impact of integrating ASHPs into natural gas-heated homes in Illinois.

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

This comprehensive guide covers installation requirements and best practices for heat pumps.

This guide covers sizing air source heat pumps based on design heating or cooling loads and intended use, along with selecting the appropriate system for installation and application.

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

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