Is there a way to clean between double-glass window panes?

— Jerry Evans Bellevue, WA

Answered by Polly Osborne, FAIA, LEED AP on November 28, 2012

I am going to need a new furnace in the near future. What do you suggest?

— Brenda Newton, KS

Answered by Erik Henry on November 28, 2012

What type of heating system should I use in the basement?

— Michael A Finksburg, MD

Answered by Erik Henry on November 28, 2012

How can I add insulation without major renovations?

— Theresa Basking Ridge, NJ

Answered by Michael Holcomb on November 20, 2012

Is it worth having a tankless hot water system installed to replace my old gas water heater?

— Beth Bogetich Saint Clairsville, OH

Answered by Joshua Lloyd on November 7, 2012