Dolder Wärmetechnik AG (St. Margrethen SG)

**Earth

• Energy utilization by earth probeI

In many cases the heat pump with ground probe is advisable. The performance and annual coefficient of performance is very high.

• Energy utilization through ground absorber

****This heating system has a very high coefficient of performance and annual performance factor and is particularly suitable for small and medium-sized buildings and for combined systems.

• Energy utilization through energy piles

If the house is built on piles, these can be equipped as energy piles.

Water

• Energy use of groundwater

If sufficient groundwater is available, it is recommended to use the heat of the groundwater. Very high coefficients of performance characterize this system.

• Energy utilization of the waters

****If your house is located near water bodies, it is advisable to use this energy source by means of a heat pump.

Air

• Use of energy from the ambient air.

In many cases, the use of ambient air is the cheapest solution.

• Energy utilization of ambient air

The energy utilization of the ambient air by means of a split system has among advantage that even less space is needed in the basement.