Using geothermy to optimise home ventilation

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The earth pipe system, natural climate control

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CategoryPractical guidelines
ChapterSustainable development

Earth pipe system

The buried pipe technique is traditionally used in North America to maintain homes frost-free (even without heating) during the winter. In Provence, it does just the opposite. It is used to lower the temperature inside the house when it's very hot outside.

The earth pipe system is based on a geothermic process. It uses the thermal inertia of the soil to pre-process the air used to ventilate the house. Actually, at two meters in depth, the temperature of the soil stays at approximately 15° in summer and 5° in winter. By circulating through a system of buried pipes, outside air enters the house hotter in winter and cooler in summer. The earth pipe system plays a role in both natural and environmentally friendly climate control since it releases much less CO2.

Are there any tax incentives for installing an earth pipe system ?

A good solution for regions exposed to very cold temperatures in winter or very hot in summer, the earth pipe system benefits from a tax credit just as all the heating solutions that use renewable energy.
The purchase of an air/air pump can entitle you to a 50% tax credit. For the period spanning from 1st January 2005 to 31 December 2009, the ceiling on costs is limited to

  • € 8 000 for a single person
  • € 16 000 for a married or common-law couple

Updated on: 25/09/2008

And on the same subject:

Tax credit in favour of sustainable development
Green insulation
The photovoltaic solar tile

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