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Side view of soda can solar air heater mounted on wall.

A DIY/homemade pop/beer/soda can solar air heater or solar furnace.

Heating and Cooling with a Solar Chimney

Heating and Cooling with a Solar Chimney. When venting house, hot air is sucked out from under ceiling and fresh air enters house at floor level.

*Vivre en autonomie, produire son électricité..son chauffage et gérer l'eau: une réalité.*** - décroissance

* Living independently, producing electricity, heating and managing water: a reality.

A comprehensive guide to the basics of off-grid power battery bank sizing. This is important because a too big or too small battery bank will have consequences. #batterybank #sizing #battery #bobbykundu

A comprehensive guide to the basics of off-grid power battery bank sizing. This is important because a too big or too small battery bank will have consequences.