Resource Library

Use this estimator to determine specific or total storage loss inputs for domestic hot water storage tanks when no 3rd party rating is provided or when an AHRI standby loss is known.

Members of the Phius certification staff offer insights into some recently updated Phius calculators.

WUFI Passive takes a conservative approach to DHW modeling for non-residential projects. Phius has developed this tool to estimate the effective DHW modeling inputs for non-res projects using WUFI or METr.

This regionally focused webinar for the Phius Alliance East Region features Nikki Krueger discussing the concerns and best practices regarding humidity in Phius buildings.

Phius Building Certification Manager Haley Harlow outlines the significant updates in the latest version of the Phius heat pump performance estimator.

A one-page flyer detailing the Phius Trades Training - Enclosure Specialist program.

Phius Trades Training instructor and developer Rob Leonard provides details on the training, including benefits of training, upcoming classes, who should take the training and more.

A detailed rundown of the events of the 2024 Westford Symposium on Building Science by one of its hosts, Betsy Pettit.

Phius Building Scientist & Certification Manager Al Mitchell outlines best practices for parapets.

This comprehensive guide, developed by Phius with funding provided by the AIA Upjohn Research Initiative grant, was prepared to assist architects in navigating rapidly emerging design issues associated with decarbonization and resilience. It also presents a case study exploring the interactions of numerous microgrid design variables with several project intents at both a building and neighborhood level setting.