What are my options for a third floor mini-split install?

— Robert Cleveland, OH

Answered by David Willson on February 13, 2013

I have a 1909 home in North Dakota with a pitched roof that needs insulating.

— Matthew Picklo Grand Forks, ND

Answered by Sean Lintow Sr on February 13, 2013

Is a radiant barrier placed over the attic floor joists a good idea?

— Ron Gurta Navarre, FL

Answered by Sean Lintow Sr on February 13, 2013

Is it more efficient to draw furnace combustion air from outside the home?

— Elyse Perruchon Solon, OH

Answered by Joshua Lloyd on February 13, 2013

Suggestions for retrofitting a 1908 house with insulation?

— Juniper Oakland, CA

Answered by John Rising on February 4, 2013