Phius 2024 Performance Criteria Calculator
This calculator is used to determine project-specific performance criteria for Phius 2024 New Construction projects using WUFI Passive. Projects submitted using METr have the criteria calculator built directly into the software.
METr Office Hours | Sept. 2026
Phius Building Certification Associate Rodrigo Barrios-Piedra answers questions related to METr, the new cloud-based energy modeling tool.
Guidelines for 3D Geometry in WUFI® Passive
Consider this a guide for beginners and experienced modelers alike. Phius' certification team put together this outline of helpful modeling tips, tricks and general information on getting the geometry of a building from SketchUp into WUFI Passive.
METr Office Hours | June 2026
Phius Certification Team members Haley Harlow and Rodrigo Barrios-Piedra answer questions on the METr energy modeling software tool.
Optimization and Outputs for WUFI and METr Webinar
Phius Certification Manager Al Mitchell covers how to understand common outputs from WUFI Passive and METr as well as useful optimization tips.
ECO2 CO2 Heat Pump Water Heater COP Estimator v26.1.0
Use this estimator to determine a climate-adjusted coefficient of performance (COP) for the ECO2 CO2 Heat Pump Water Heater. This estimator also includes instructions on modeling storage losses associated with water storage tanks and swing tanks per ECO2's available products. This estimator is applicable for Gen 1 through Gen 5.
METr Office Hours | January 2026
Phius Certification Manager Haley Harlow and Phius Building Certification Associate Rodrigo Barrios-Piedra answer questions related to the METr energy modeling tool.
Walking Through METr Webinar
Phius certification team members walk through the METr energy modeling software and answer questions.
Thermal Bridge Psi-Value Calculator
This calculator can be used to determine psi-values for 2-D thermal bridges in combination with THERM.
WUFI Passive Office Hours | September 2025
Phius Certification Manager Al Mitchell answers questions about the WUFI Passive energy modeling software.