In this case study, an Outdoor Wood Burning appliance was installed in central Illinois as a biomass substitute for existing natural gas heating.  The location is owned by the University of Illinois at Urbana-Champaign and is operated under the name Allerton Park.  Allerton Park is a 1,500 acre estate with numerous woodland, riparian, and prairie areas.   This location was selected by the University’s Student Sustainability Committee which disperses student fees allocated for sustainability improvements.  The visitor center and several workshops at Allerton Park used a 1960 boiler/heating unit that was expensive to run and produced excessive CO2 emissions.