Stephen Hren is a restoration carpenter, builder and teacher who specializes in sustainable design and solar heating technologies. He is the co-author of The Carbon-Free Home and A Solar Buyer’s Guide for the Home and Office.
We are an activist, solutions-oriented publisher focused on bringing you the tools for a changing world. We care deeply about what we publish and how we do business. That’s why we print on 100% post-consumer recycled paper, we are carbon neutral, and we print primarily in North America.
