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Project 1992

13 Kirkland

Cambridge, Massachusetts

Building Function

Multifamily
Project Type

Retrofit
ASHRAE Climate Zone

5A - Cool - Humid
Status

Final Certified
INT. Conditioned Floor Area

3618 sq. ft.

Core Project Team

Builder

Dustin Corbett
Phius CPHB

Charlie Romano
Phius Certified Verifier

Mark Newey
Phius CPHC (Secondary)

Rheannon DeMond
Phius CPHC (Lead)

Prudence Ferreira
Project Submitter

elsa mullin

Project Information

- Building Function
  
  Multifamily
- Project Type
  
  Retrofit
- Number of Units
  
  4
- Number of Stories
  
  4
- Program Version
  
  Phius CORE REVIVE 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  3618 sq. ft.
- Status
  
  Final Certified
- Design Certification
  
  October 18, 2023
- Final Certification
  
  March 5, 2024
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  4.48
- Annual Cooling Demand
  
  2.07
- Peak Heating Load
  
  4.31
- Peak Cooling Load
  
  2.68
- Site Energy Use Index (EUI)
  
  27.47
- Site Energy Use Index (w/Renewables)
  
  24.1
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  4192
- Source Energy (Residential w/Renewables)
  
  3678
- HERS Rating
  
  43
- Air Tightness (per enclosure area)
  
  0.054

Enclosure

- Wall 1 R-Value
  
  33
- Roof 1 R-Value
  
  71
- Floor 1 R-Value
  
  58
- Whole Window U-Value 1
  
  0.12
- Window Glazing SHGC 1
  
  0.36

Systems & Equipment

- Ventilation System Layout
  
  De-Centralized
- Ventilation System Type
  
  Multifunction
- Sensible Recovery Efficiency
  
  100
- Heating System Type
  
  Air Source Heat Pump
- Hot Water System Layout
  
  Centralized
- Hot Water System Type
  
  Split Heat Pump Water Heater
- Renewable Energy Type(s)
  
  Virtual PPA
- Renewable Energy Annual Production
  
  4000
- Renewable Energy System Size
  
  2.3