Dear Jim: I am trying to run my central air conditioner less to save electricity. Would using a portable air conditioner use less electricity? Does one have to be vented outdoors through a window? – Karlene M.
June 2, 2013 - James Dulley
Dear Jim: We are planning our energy-efficient dream home. We have heard about net zero energy designs. Are they as livable as regular efficient houses, do they look strange, and how much do they cost? – Steven F.
April 7, 2013 - James Dulley