Heat Pumps: The Definitive Guide For 2019 | Every Solar Thing
Geothermal Heat Pump | WaterFurnace
Geothermal Heating and Cooling Technologies | Renewable Heating and Cooling: The Thermal Energy Advantage | US EPA
Ground source heat pump carbon emissions and ground‐source heat pump systems for heating and cooling of buildings: A review - Ahmadi - 2018 - Environmental Progress & Sustainable Energy - Wiley Online Library
Using Ground-Source Heat Pump Systems for Heating/Cooling of Buildings | IntechOpen
HeatSpring Magazine – 4-Step Guide to Designing Geothermal Systems