AcUnits.com

International Energy Agency (IEA) Heat Pump Centre
Information from the IEA about the technology, applications and markets. Includes FAQs, research profiles and reports, announcements of conferences and events and links.
www.heatpumpcentre.org/

European Heat Pump Association (EHPA)
Non-profit organisation which promotes awareness and proper deployment of the technology in Europe. Includes basics, news, publications, events calendar, project and regulatory information.
www.ehpa.org/

International Ground Source Heat Pump Association (IGSHPA)
Promotes the use of the technology worldwide through education and communication. Includes technical and commercial aspects, case studies, publications and conference calendar.
www.igshpa.okstate.edu/

Geothermal Heat Pump Systems
Describes the concept with animated graphics. Addresses installation concepts and mechanisms.
www.geothermal-heat-pump-resource.org/

Thermodynamic diagrams of alternative refrigerants for refrigeration, air conditioning and heat pump
Thermodynamic diagrams for environmentally friendly refrigerants of R134a, R227, R407C, R407B, R410A, R507, HX4, R290, CARE 50, CARE 30, hydrocarbons
www.geocities.com/

Geothermal Heat Pump Energy - How It Works
Explanation of the technology basics. Addresses heat extraction technic and mechanisms.
www.geothermalheatpump.com/

Wikipedia: Heat Pump
Free encyclopedia article covering the technology basics. Addresses background, thermodynamic aspects for different types of heat pumps.
en.wikipedia.org/

Triple whammy for farmers Drought, heat, low prices
[CNN]
www.cnn.com/

U.S. gasoline pump prices fall from record high
[CNN]
cnn.com/

Gas prices jump at pump
[CNN]
cnn.com/