Ground Source Heat Pump - use the soil or groundwater as your heat source

NIBE and Stiebel Eltron are at the forefront of heat pump technology and all Grampian Heat & Power’s heating engineers have attended certified training courses at the NIBE Heating headquarters at Markaryd, Sweden and with Steibel Eltron in Germany.

Energy consumption can be lowered by up to 75% with the use of Ground-source Heat Pumps compared to fossil fuelled heating systems.

Ground Probe

In the lower subsoil of the ‘near-surface geothermal layer’ lies a heat source that can be utilised all year long, and has an almost constant temperature. It can be used for all building types, large or small, public or private. Depending on the region it is also referred to as, ‘vertical absorption, ground spit or ground lance’. It requires little space and the ground probe can even be drilled on the smallest of plots. Therefore, it is ideal for a refurbishment project or when adapting a heating system fuelled by fossil fuels to one using geothermal energy.

Surface Collector

During the summer, solar heat is stored in the soil. This is either directly absorbed as insulation or as heat from rain and the air from the near-surface layer of the soil. Using this energy for heating is a cost effective method. The highest yield can be obtained from soil with high water content.

The heat is extracted from the soil by means of buried plastic tubing. An environment-friendly, non-freezing emulsion of water-glycol circulates in the tubing.

The soil above the earth collector must not be sealed off, i.e. by buildings, asphalt or concrete. Installation depth is approximately 20 cm under the local frost line. Earth collectors do not require a permit.