DEEP DRILLING

A geothermal probe consisting of plastic pipes absorbs freely available heat when passing through the brine liquid. This energy is used in the heat pump circuit to evaporate the refrigerant.

Beyond a depth of 20m, the earth has a constant temperature of +10°C – excluding seasonal fluctuations. This consistency offers warm brine temperatures in the winter and is perfectly suitable for air conditioning in the summer.
The probe length depends on the heating demand of the property, the desired room temperatures and of course also on the hot water consumption. It is also important to take the soil properties into account. The soil output may be as low as 20 watts per metre, but in the most favourable cases, it may increase to up to 80 W/m. Such a difference may increase the required drilling depth by as much as four times!

Deep drilling
ADDITIONAL HEAT SOURCES

DIRECT EVAPORATION

Direct evaporation is the most efficient geothermal heat application for confined areas.

DEEP DRILLING

Heat pumps with deep drilling are the safest variant: they require a minimum of space, have a long service life and are suitable for heating and air conditioning.

FLAT COLLECTORS

Flat collectors are cheap to install but require a large surface below the garden.

GROUNDWATER

Groundwater technology is highly efficient and requires little space: the energy is drawn from the earth using two wells.