Solar Coffin Air Heater

“I visited a friend’s house with a unique take on solar air heating. He coins his invention the Solar Coffin. This device heats air up to well over 100 degrees C within the “coffin” unit. The air is then moved under the slab of his house which stores the solar energy for release during the winter. This system is based on a system called annualized geo-solar developed in the US as a strategy to get off the heating grid.”

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