Install a heat pump (geothermal)

The choice of geothermal energy is not possible in all cases. Before opting for this solution, carefully study its feasibility. The use of a professional installer gives you a real guarantee of quality.

Installing a heat pump: the principle

Geothermal energy is:
- Sensors outside the home (horizontal or vertical);
- A heating circuit inside; 
- A CAP (heat pump) which realizes the exchange of energy between the two networks.

Installing a heat pump: the functioning

Geothermal heating takes the heat in the soil or water from an aquifer. This is done through networks of underground sensors, probes or wells. The heat is transmitted to a heat pump. It increases the temperature level to restore it to a higher temperature in the dwelling. And thanks to an evaporator, a compressor and a regulator. Heat is transmitted from a floor in which are embedded pipes and radiators.

Installing a heat pump: the horizontal sensors

The horizontal sensors of a heat pump is buried at a depth of 0.60 m to 1.20 m. To install such a system requires space. Indeed the total length of the tubes such sensors exceeds several hundred meters. To heat a house of 150 m2, and must have between 225 and 300 m2 of garden. And on this space, not planting trees, no land or building. The area occupied by the sensors must be permeable. Field, little steep, not to be crossed by water. This type of installation is recommended on rocky ground.

Installing a heat pump: vertical sensors

The sensors are installed by drilling vertical. It is necessary to use a drilling company approved by the BRGM (Bureau of Geological and Mining Research). These sensors are placed only after authorization and compliance with administrative procedures concerning the protection of basements.

Installing a heat pump: certifications

Attaching sensors

The material chosen must be of quality. The process must be certified or Eurovent obtaining technical advice from the CSTB. It must, of course, it is up to standard. The manufacturer and installer, if you choose this option must offer reliable equipment. It must correspond to the needs of your home and its features.

Installing a heat pump: aid

You can get more aid for the installation of a geothermal heating:
- A 5.5% VAT on the pump and its installation; 
- A tax credit on costs, excluding labor, billed and paid; 
- Support of Anah (National Housing Agency) for homeowners over 15 years. The amount depends on the number of people in your family and your resources;
- Support your local community;
- Support of EDF.