Do water heater timers work as advertised?

— Stephan Pollard Fayetteville, AR

Answered by Michael Holcomb on May 23, 2012

What's the best way to insulate the underground walls in our basement?

— Sarah Nugent Orland, ME

Answered by Michael Holcomb on May 7, 2012

What tests can I do myself to check how healthy my home is?

— Angus Young Beverly Hills, CA

Answered by Michael Holcomb on April 25, 2012