I just installed solar PV on my townhouse. Do I qualify for LEED points?

— Kevin Minogue Palm Beach Gardens, FL

Answered by Danny Kelly on November 7, 2010

I can't afford geothermal. Is an air-to-air heat pump my best option for heating?

— Chris Di Giacomo Shirley, NY

Answered by Randy Potter on October 16, 2010

Are solar panels a viable replacement for propane heating?

— par Mountain View, CA

Answered by Lee Hall on August 29, 2010