Can you help me select a high efficiency furnace?

— Jeffrey Vigneault, Redding, CT

Answered by Richard Parker on March 4, 2008

Are whole-house fans effective in northern latitudes?

— J.C. Cahill, Edmonton, AB, Canada

Answered by Cassandra Adams on November 20, 2007

What's the best way to capture solar heat from south-facing windows?

— Jeff Kushner, Victor, MT

Answered by Cassandra Adams on November 20, 2007

Can I switch to solar-heated water in my radiant heat system?

— Lynn Freeman, Sandy, OR

Answered by Connie McCullah on August 21, 2007

We are installing a radiant heat system. Can you recommend safe flooring adhesives to use?

— Kimberly Keene, Nevada City, CA

Answered by Mitch Boucher on August 7, 2007

What can I do to reduce my home's carbon footprint?

— Kathryn Stewart, New York, NY

Answered by Eric Corey Freed on July 31, 2007

How can I remodel my oceanside property for maximum energy efficiency?

— Tricia Mittens, Nassau, Bahamas

Answered by Cynthia Phakos on June 19, 2007