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Project 2642

Terra Chattanooga Passive House

OPEN Architecture Practice

Chattanooga, Tennessee

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

4A - Mixed - Humid
Status

Design Certified
INT. Conditioned Floor Area

2527 ft²

Core Project Team

Phius Certified Rater

David M Horton
Phius CPHC (Lead)

Chris Laumer-Giddens
Project Submitter

Chris Laumer-Giddens

Project Information

- Architecture Planning
  
  OPEN Architecture Practice
- Building Owner
  
  Amanda & Sumeet Makhijani
- Construction Company
  
  Terra Southeast
- 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
  
  2527 ft²
- Status
  
  Design Certified
- Design Certification
  
  August 25, 2025
- ASHRAE Climate Zone
  
  4A - Mixed - Humid
- Region
  
  Southeast

Performance

- Annual Heating Demand
  
  5.17 kBTU/ft².yr
- Annual Cooling Demand
  
  8.73 kBTU/ft².yr
- Peak Heating Load
  
  4.24 kBTU/ft².yr
- Peak Cooling Load
  
  3.01 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  13.6 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  3625 kWh/person.yr

Enclosure

- Window Manufacturer 1
  
  Schuco

Systems & Equipment

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