Outdoor underground heating system - has heater coils above liquid collector coils for ground heat extractor linked to water pump

摘要

The underground heating system n2) is for sports pitches, roads, turf areas, car parking places, paths or other outdoor surfaces. Under a heat insulating layer in the ground, below the heating device, is a device for extracting heat from the ground or from groundwater (15) connected to a water pump (5) for raising temperature. The outlet side of the pump is connected to the heating device. The ground heat extraction device can have a duct system (8) filled with water, or other fluid, with heat passed across a heat exchanger to the pump, while the heating device has a second water-filled duct system linked to a second heat exchanger.