Potomac Farms

  • Description: Overview:

Key Partners:

Energy Efficiency Measures:

Other Features:

* End Type: No Regional Office: Philadelphia Submitted: No Approved: Yes Modified: 2004-09-02 * Visit: No

Specification 3307

  • Percent Energy Savings: 7
  • Submitted: No
  • Approved: Yes
  • Modified: 2008-05-05 00:00:00
  • Floor Plan: Unknown
  • Roof Radiant: No
  • Wall Radiant: No
  • Space Heating Capacity: 0.0
  • Total Energy Savings: 7.0

Specification 3308

  • Percent Energy Savings: 15
  • Submitted: No
  • Approved: Yes
  • Editor: Bob Hendron
  • Modified: 2004-09-02 11:38:00
  • Floor Plan: Northcott House
  • House Type: Prototype/Research House (G2)
  • Number of Stories: 2.0
  • Number of Bedrooms: 3
  • Floor Area: 5141.0
  • Conditioned Volume: 49170.0
  • Roof Framing: Vented attic - truss framing
  • Roof Insulation: Sprayed cellulose
  • Roof R Value: 38.0
  • Roof Radiant: No
  • Wall Framing: Wood - 2x6 - 24 in o.c. (Advanced Framing)
  • Wall Insulation: Sprayed cellulose
  • Wall R Value: 13.0
  • Wall Sheathing: EPS
  • Wall Sheathing R Value: 5.0
  • Wall Radiant: No
  • Foundation Type: Conditioned basement
  • Foundation Insulation: Other
  • Foundation R Value: 13.0
  • Window Glazing: Double pane - low-e - argon filled
  • Window Framing: Vinyl over Wood
  • Window U Value: 0.340000003576
  • Window SHGC: 0.310000002384
  • Space Heating Type: Air Source Heat Pump
  • Space Heating Combustion: N/A
  • Space Heating Capacity: 0.0
  • Space Heating Location: Basement
  • Space Heating Fuel: Electric
  • Cooling Type: Air Source Heat Pump
  • Cooling Capacity: 6.0
  • Cooling SEER: 12.0
  • Cooling Fuel: Electric
  • Cooling Upgrades: Two 3-ton heat pumps
  • Duct Location: Partially in conditioned space
  • Duct R Value: 6.0
  • Air Distribution Location: Basement/Closet
  • Air Distribution Upgrades: Some ducts buried under attic insulation
  • Vent Type: Controlled supply
  • Vent Control: Continuous (24 hrs/day)
  • Energy Star Rating: Yes
  • HERS Rating: 87
  • Total Energy Savings: 15.0

Data and Resources

Additional Info

Field Value
Author Bob Hendron
Maintainer Bob Hendron
Last Updated September 16, 2016, 21:45 (Etc/UTC)
Created September 16, 2016, 21:45 (Etc/UTC)
Construction Type New Construction
Evaluation Level Test House
Climate Mixed - Humid
City Ashburn
State VA
Zip Code 99999
Phase Before 2010
Project Start Date 1970-01-01
Project Estimated End Date 1970-01-01
Project Actual End Date 1970-01-01
Completed House Count 1
Expected House Count 1
Energy Savings Percentage 11
Average Estimated Annual Source Energy (MMBtu) 1
Average Conditioned Floor Area (sqft) 1

Dataset extent

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