Helder Valente

Helder Valente

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Helder Valente
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Geothermal Systems. Hydrothermal systems keep rooms cool in the summer and warm in winter

this geo thermal system represents a characteristic of life because it deflects the suns heat to keep a house cool just like an animal.

Resultado de imagem para fabriquer un tour a bois

Resultado de imagem para fabriquer un tour a bois

About Permaculture: Funny Interview with Helder Valente and Doug Bullock - YouTube

About Permaculture: Funny Interview with Helder Valente and Doug Bullock