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December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
Become a Phius Enclosure Specialist!
Upcoming Sessions
- Jan. Webinar: Walking Through METr
  January 13
- Phius Certified Builder Training and Certification Exam | January 2026
  January 20 – 30
- Member Office Hours - METr
  January 20
- Phius Certified Consultant Training & Certification Exam | January 2026
  January 20 – 30
- Policy Work
  Promoting policies designed to grow passive building
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- Tools and Support
  Providing the tools you need to create healthier buildings
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Project 2500

Project One

Brach Design

Bluffdale, Utah

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

5B - Cool - Dry
Status

Certified
INT. Conditioned Floor Area

14953 ft²

Core Project Team

Phius Certified Rater

David Brach
Phius CPHC (Lead)

Thomas Candee
Project Submitter

Timothy Ruff

Project Information

- Architecture Planning
  
  Brach Design
- Building Owner
  
  Timothy & Brooke Ruff
- Mechanical Systems Designer
  
  Central Valley Mechanical
- Construction Company
  
  Cross Construction
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- Number of Units
  
  1
- Number of Stories
  
  3
- Program Version
  
  Phius CORE 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  14953 ft²
- Status
  
  Certified
- Design Certification
  
  July 25, 2024
- Final Certification
  
  August 1, 2025
- ASHRAE Climate Zone
  
  5B - Cool - Dry
- Region
  
  Southwest

Performance

- Annual Heating Demand
  
  5.14 kBTU/ft².yr
- Annual Cooling Demand
  
  2.04 kBTU/ft².yr
- Peak Heating Load
  
  3.35 kBTU/ft².yr
- Peak Cooling Load
  
  1.44 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  8.89 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  6.35 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  7792 kWh/person.yr
- Source Energy (Residential w/Renewables)
  
  5523 kWh/person.yr
- HERS Rating
  
  50
- HERS Rating w/Renewables
  
  30

Enclosure

- Window Manufacturer 1
  
  Alpen

Systems & Equipment

- Ventilation System Manufacturer
  
  Fantech
- Measured Ventilation Fan Efficiency
  
  0.79 W/cfm
- Heating System Manufacturer
  
  Ground Source
- Hot Water System Manufacturer
  
  Sanden
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  19755 kWh/yr
- Renewable Energy System Size
  
  13kW