
Facilitating the Renewable Transition Part I: Passive Buildings and the Grid
Phius Associate Director Lisa White examines the interactivity between passive buildings and the future of the grid.
HRV/ERV Outside Calculator
This calculator should be used to determine the 'Mechanical Room' temperature when a mechanical ventilation device is located outside of the thermal envelope. (eg. the roof)

WUFI Passive Office Hours | March 2023
Phius Certified Consultant Ryan Abendroth answers questions about energy modeling using WUFI Passive.

A Sneak Preview of Phius REVIVE Pilot Ahead of Phius Retrofit Summit 2023
Phius Senior Scientist Graham Wright provides a glimpse inside the process of creating the new Phius REVIVE program for retrofits that is currently under development.

WUFI® Passive Version 3.3 is Finally Here!
Phius Associate Director Lisa White and Phius Project Certification Manager James Ortega highlight some key changes in the new version of WUFI Passive.

Phius Training Update: In-Person Courses, Opportunity in Massachusetts, and More
Phius provides updates on its training programs.

Project Office Hours | February 2023
Phius Project Certification Manager James Ortega answers project questions.

How One Phius Staff Member Replaced Their Heating System
Phius Quality Assurance Manager Tony Lisanti recounts his experience replacing the heating system in his New Jersey home.

Moving the Needle Part II: 2022 Energy Code Advancements
Phius Policy Specialist Isaac Elnecave provides an update on Phius-related energy code advancements throughout the country.

Phius Frame U-Value Estimator
This tool can be used for building compliance modeling for Phius Project Certification to estimate component-level performance data for fenestration systems that are rated by the National Fenestration Rating Council (NFRC). Be sure to read the 'Start Here' tab and if component-level performance data is already available for your product, you won't need this tool.