Geothermal collection A high-performance solution for smaller surface areas Drilling is carried out by a professional using a variety of techniques, such as down-the-hole hammering (DTH – without casing the borehole in rocky and compact ground) and casing while drilling (CwD – crumbly, soft ground). 2 U-shaped collectors made of high density polyethylene (HDPE) piping are inserted into the borehole and lowered using a sledge. The borehole is then filled with a special cement grout for geothermal collectors (e.g., Thermocem) to ensure proper heat exchange and relative flexibility, allowing for micro-deformations in the ground. We recommend reaching out to the company responsible for drilling the boreholes to adapt the borehole length to your specific terrain and its potential output. GEOTHERMAL COLLECTION POTENTIAL OUTPUT UNIT Geolia 5 Geolia 7 Geolia 10 Geolia 13 Geolia 17 3°C/35°C kW 4.65 5.90 8.32 10.68 14.19 3°C/45°C kW 3.87 5.02 7.04 9.55 12.80 3°C/55°C kW - - 5.77 8.48 11.23 DRILLING EXAMPLES FOR STANDARD GROUND AND USE HEAT PUMP USE GROUND TYPE UNIT Geolia 5 Geolia 7 Geolia 10 Geolia 13 Geolia 17 Standalone heating for new premises Granite m 1 x 100 2 x 65 2 x 90 3 x 75 3 x 100 Wet gravel m 2 x 65 2 x 80 3 x 75 3 x 100 4 x 95 Standalone heating for renovated premises Granite m 2 x 55 2 x 70 2 x 100 3 x 85 4 x 85 Wet gravel m 2 x 75 2 x 95 3 x 90 4 x 85 5 x 90 Heating + domestic hot water (DHW) for all premises Granite m 2 x 80 2 x 100 3 x 95 4 x 90 5 x 95 Wet gravel m 3 x 75 3 x 95 4 x 100 5 x 100 7 x 95 GEOTHERMAL SYSTEMS Geolia range Geothermal and groundwater collection Groundwater collection Geothermal collection Important note: The total length of the borehole largely depends on the type of ground and load used by the heat pump. 75
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