Energy & Climate Intelligence Unit | Heat pumps and the Government's…
Energies | Free Full-Text | State of the Art, Perspective and Obstacles of Ground-Source Heat Pump Technology in the European Building Sector: A Review
Air Source Heat Pumps | Ground Source Heat Pumps | Ireland | UK | Go Geothermal Ltd
Module 15: The increasing potential for ground source heat pumps - CIBSE Journal
Air source heat pumps: how the costs and savings stack up | Consumer affairs | The Guardian