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Case Studies

Commercial    · Government    · Residential
Most of these case studies are from WaterFurnace International. You will need Acrobat Reader to read them. Other Case studies are links to other sites.

Commercial

  1. This is our favorite case study. It compares heating and cooling costs for a pair of twin hotels. The one building that has groundsource for heating and cooling spends $25,000 less on heating and cooling PER MONTH than the other that has conventional systems. Location: Louisville, Kentucky Galt House

  2. Here is the largest water loop system in North America: WaterFurnace's corp headquarters and plant. Their whole 115,000 sq.ft. building is heated and cooled by using the earth and their top of the line units.Location: Fort Wayne, Indiana. WaterFurnace International Building

  3. An 80,000 sq.ft. office-condo complex is designed with innovative technologies, including groundsource heating and cooling systems. Location: Allentown, Pennsylvania. Paragon Center


  4. A 42,000 sq.ft. medical building heated and cooled using a pond loop. It compares costs between two building phases; the first being conventional and the second a GHP installation. Location: Fort Wayne, Indiana. Dupont Medical Center

  5. Warehouse/office with ceiling heights of 9/12-20 ft. Uses a horizontal closed loop system. Designed with a water to air system in the offices to allow for Central Air in the summer, and water to water (Radiant Floor) in the warehouse portion for maximum efficency. Location: Quincy, Illinois. John Deere Dealership

  6. Here is a retrofit of a 250,000 sq.ft office building. The payback of the entire installation cost of $160,000 was less than ONE YEAR! Location: Woodbury, NY. GEICO Office Complex

  7. A 70,000 sq.ft. retail and condo complex. vertical closed loop system. Location: Vancouver, Canada. Five Story Retail/Condo Complex

  8. A 40,000 sq.ft resort located in one of the most consistent and heavy snowbelts in North America. Uses a vertical closed loop system. Location: Blue River Resort, BC, Canada. Blue River Resort Complex

  9. This 14 story condo has saved their owners more than 60% in Electricity bills after they replaced the electric resistance heating system with a vertical closed loop system installed under the parking lot. Talk about great use of space! Location: Ocean City, Maryland. Antigua Condominiums


Government

  1. State Supported 32,000 sq.ft. Community College Invests in GSHP's and saves $60,000 per year on energy costs. They were able to find Grant money from the DOE and EPA. They also received a rebate package form the Electric Company because the units overall would bring more revenue to the Electric company while reducing peak demand. Location: Carney's Point, New Jersey. Salem Community College

  2. This State Office building of 27,000 sq.ft. installs a GHP system that cost $40,000 less than conventional boiler/tower system. The systems run at 60%-70% the cost of a similar building that is 5,000 sq.ft. smaller. Vertical Closed Loop Systems. Location: York County, Virginia. Health and Human Services Offices


  3. This US Army Base boasts the largest GHP installation in the world. They were able to reduce peak energy demand by 43%, and save $345,000 per year in energy costs. Great before and after energy use graph. This site's performance is constantly being measured. Probably a great source for longterm operating cost information. Location: Fort Polk, Louisiana. Fort Polk Army Base

  4. This Rural Elementary School received a $125 per ton rebate from their electricity supplier. The school is able to save $16,250 per year in heating and cooling costs for the 40,000 sq.ft. building. Used a vertical closed loop. Location: Garrard County, Kentucky. Paint Lick Elementary School

  5. A public middle school saw energy consumption reduced while being able to maintain constant temperatures year round. The maintenance supervisor is amazed that the GHP's required less than 30 hours per year for maintenance, compared to the 30-50 hours per week the diesel fired boilers required. Location: Kittitas, Washington. Kittitas Middle School

  6. Nature Center sees a 60% savings per month in energy costs after they install a vertical closed loop GHP system. Location: Clevland, Ohio. Lake Erie Science and Nature Center


Residential

  1. Contemporary 4,500 sq.ft. home has the ideal comfort system. Uses a vertical closed loop. For a home that mostly needs cooling, it can save the owners 60% in operating costs. Location: Coppell, Texas. Home of the Future

  2. This 15,000 sq.ft. Mansion saves on heating and cooling. GHP's give you $3-$4 back for every dollar you spend on energy, whereas high effeciency gas systems only give you $.97. Location: Pittsburg, Pennsylvania. PA Mansion

  3. This 7,000 sq.ft. Home is the start of an exclusive geo-exchange subdivision. Vertical and Closed Loop system. Location: Hudson Valley, New York. Hudson Valley Home

  4. Here is a more conventional 3,200 sq.ft. home in a cold climate (much like Vermont). Geo-exchange units are the right choice for people looking to avoid fossil fuels for heating. Closed vertical loop. Location: Vancouver, British Columbia. Vancouver House


This graph was a result of research by Ontario Hydro in Canada. Ontario Hydro took a house and separately metered all the components of a GHP to measure the percentages of household usage. This measurement was on an installation that our present lead installer David Cardill designed and installed.