How do I heat a greenhouse for the winter?

— Maury Parrottsville, TN

Answered by Sean Lintow Sr on October 17, 2013

What material is best to insulate my crawlspace?

— Patricia Jonesboro, AR

Answered by Sean Lintow Sr on October 17, 2013

What is the most efficient oil furnace for the home?

— Cindy Janaskie Salisbury, MD

Answered by Michael Holcomb on October 10, 2013