Long-Term Results: New Construction Occupied Test House, Urbana, Illinois

Research output: NRELSubcontract Report


For this study, a house was designed and built to the Passive House (Passivhaus) Standard for low energy consumption. The house incorporates an airtight, super-insulated thermal enclosure, southern facing windows with overhangs, a single point mini-split heat pump and electric resistance heaters, and a balanced energy recovery ventilator (ERV). The house was instrumented with sub-metering on allmajor electrical circuits, temperature and humidity measurements in each room, domestic hot water consumption, and recovery efficiency of the ERV. The energy performance was documented and compared to modeled predictions, and the thermal comfort performance of the heat pump was assessed.
Original languageAmerican English
Number of pages20
StatePublished - 2012

Bibliographical note

Work performed by IBACOS, Pittsburgh, Pennsylvania

NREL Publication Number

  • NREL/SR-5500-53707

Other Report Number

  • DOE/GO-102011-3489


  • Building America
  • cold climate
  • Illinois
  • mini-split heat pumps (MSHP)
  • monitored data
  • passive house
  • Passivhaus
  • residential
  • residential buildings
  • single point space conditioning
  • whole house


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