Q: We are getting bids on good-quality vinyl windows to replace the cruddy wood windows that came with our house. Is it worth the price to use argon gas to increase the U factor? Even if the window ...

The ReVISION Vegas home, a Department of Energy project that features a full-scale energy retrofit of a 1963 ranch home, will help cut energy bills by at least 60%. Milgard's triple pane, low-e, ...

Buildings with windows filled with water rather than gas could save energy in most of the world, according to researchers backing the new technology. Matyas Gutai at Loughborough University, UK, ...