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Project 2531

Swan Range Passive

Studio Temperate

Kalispell, Montana

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

6B - Cool - Dry
Status

Certified
INT. Conditioned Floor Area

2508 ft²

Core Project Team

Phius CPHC (Secondary)

Alex Hale
Phius Certified Rater

David Brach
Phius CPHC (Lead)

Dylan Lamar
Project Submitter

Alex Hale

Project Information

- Architecture Planning
  
  Studio Temperate
- Building Owner
  
  Gayle Sorenson
- Mechanical Systems Designer
  
  Cultivate, Inc.
- Construction Company
  
  Mindful Designs
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- Number of Units
  
  1
- Number of Stories
  
  2
- Program Version
  
  Phius CORE 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  2508 ft²
- Status
  
  Certified
- Design Certification
  
  January 13, 2025
- Final Certification
  
  May 22, 2025
- ASHRAE Climate Zone
  
  6B - Cool - Dry
- Region
  
  North Central

Performance

- Annual Heating Demand
  
  8.85 kBTU/ft².yr
- Annual Cooling Demand
  
  1.73 kBTU/ft².yr
- Peak Heating Load
  
  4.59 kBTU/ft².yr
- Peak Cooling Load
  
  1.21 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  15.68 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  4148 kWh/person.yr
- HERS Rating
  
  29
- Air Tightness (per enclosure area)
  
  0.029 CFM50/ft²

Enclosure

- Window Manufacturer 1
  
  Alpen

Systems & Equipment

- Ventilation System Manufacturer
  
  Zehnder
- Measured Ventilation Fan Efficiency
  
  0.55 W/cfm
- Heating System Manufacturer
  
  Mitsubishi
- Cooling System Manufacturer
  
  Mitsubishi
- Hot Water System Manufacturer
  
  Rheem