My Mother's House Part V: Ductwork and Hybrid Energy

Learn more about the MOTHER EARTH NEWS earth-sheltered home that relies primarily on passive solar gain and a passive/active heat and storage system.



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Hot air for our hybrid collection system is drawn form both the greenhouse and the round registers you see in the roof peak duct.
PHOTO: MOTHER EARTH NEWS STAFF
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The solar-heater air enters the storage bed (shown here before completion) at the far end and passes between the rocks.
MOTHER EARTH NEWS STAFF
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As you can see, our earth-sheltered house is — at least externally — nearing completion. We do have several more important features to discuss in future issues, however.
MOTHER EARTH NEWS STAFF
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The system can be switched from storage to heating mode with a single lever. That control does, though, manage an array of linkage rods that move three valves.
MOTHER EARTH NEWS STAFF
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The system can be switched from storage to heating mode with a single lever. That control does, though, manage an array of linkage rods that move three valves.
MOTHER EARTH NEWS STAFF
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Left: Storage Mode Right: Heating Mode
MOTHER EARTH NEWS STAFF

















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