Avenir Energie SL (France)
www.avenir-energie.com

National Energy Foundation (UK)
www.nef.org.uk

Geothermal - Ground Source Heat Pumps (GSHP)
www.nef.org.uk/gshp
www.gshp.org.uk

Climate Challenge (UK)
www.gshp.org.uk

Danfoss Group S.A.
www.danfoss.com

Energy Saving Trust
www.energysavingtrust.org.uk/your_impact_on_climate_change