Whenever you give thought to Ground Source & Geothermal Heat Pumps, you think about significant ground temperatures that will provide very efficient performance.
Closed Loop Borehole
Flow/return pipes functioning down/up in a single borehole to depths of 150m + (numerous boreholes within a system array).
Horizontal Collector
Pipes beneath the floor at circa 1200 to 1500mm deep run horizontally, with the vast majority of the thermal collection being solar/surface heat derived mainly because of the shallow collector depth (useful ground temperature starts off at 15m depth).
Open Loop Borehole
Good levels of Heat Pump efficiency are reached as a result of dependable temperatures that can be delivered from aquifer units.
Here, a flow borehole check here as well as a separate return borehole circulate ground/aquifer water to the Heat Pump.
All 3 methods offer application advantages to appropriate projects and can be configured as primary ground source collector-driven heat pump systems, or air/ground dual-source systems to reduce civil expenditures where required.