PAHS eBook

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Passive Annual Heat Storage – Improving the Design of Earth Shelters

By JOHN N. HAIT

eBook in PDF format (for paperback, click here). Now fully searchable! Updated with color graphics. Still the world’s most advanced text on earth sheltering. PAHS heating & cooling systems, underground water control, convection powered earth tube ventilating systems, heat flow control, radiant, convective, conductive, “transportive.”

All PAHS publications are supplementary to this book. Get this book first!

Click here to read Chapter 1 for FREE!


$26.00 USD