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December 5 – 11

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Project 1866

11 E. Lenox Street

Boston, Massachusetts

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

5A - Cool - Humid
Status

Final Certified
INT. Conditioned Floor Area

36885 sq. ft.

Core Project Team

Phius CPHB

Patrick Larcom
Phius Certified Verifier

Chris Straile
Phius CPHC (Secondary)

Christina Aßmann
Phius CPHC (Lead)

Michael Hindle
Project Submitter

Michael Hindle

Project Information

- Construction Company
  
  Haycon Construction
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame, Heavy Timber
- Number of Units
  
  34
- Number of Stories
  
  7
- Program Version
  
  PHIUS+ 2018
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  36885 sq. ft.
- Status
  
  Final Certified
- Design Certification
  
  November 9, 2021
- Final Certification
  
  May 1, 2024
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  2
- Annual Cooling Demand
  
  5.35
- Peak Heating Load
  
  3.08
- Peak Cooling Load
  
  2.63
- Site Energy Use Index (EUI)
  
  17.23
- Site Energy Use Index (w/Renewables)
  
  12.84
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  4854
- Source Energy (Residential w/Renewables)
  
  3617
- Air Tightness (per enclosure area)
  
  0.079

Enclosure

- Wall 1 Type
  
  Framing with Continuous Insulation
- Wall 1 R-Value
  
  35
- Roof 1 Type
  
  Unvented Roof
- Roof 1 R-Value
  
  65
- Roof 1 Insulation Type
  
  PolyIso
- Floor Type 1
  
  Basement Slab
- Floor 1 R-Value
  
  69
- Floor 1 Insulation Type
  
  Other
- Floor Type 2
  
  Overhang Floor
- Floor 2 R-Value
  
  44
- Floor 2 Insulation Type
  
  Mineral Wool
- Window Manufacturer 1
  
  Amberline
- Whole Window U-Value 1
  
  0.16
- Window Glazing SHGC 1
  
  0.35

Systems & Equipment

- Ventilation System Manufacturer
  
  Panosonic, Renewaire
- Measured Ventilation Fan Efficiency
  
  1.01
- Heating System Manufacturer
  
  Daikin
- Cooling System Manufacturer
  
  Daikin
- Hot Water System Manufacturer
  
  Sanden
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  46858
- Renewable Energy System Size
  
  39.84