Yes and no. The article is about how much energy a new product saves. But only compared to what appears to be standard american windows. Because compared to a n

Yes and no. The article is about how much energy a new product saves. But only compared to what appears to be standard american windows. Because compared to a normal, 21st century european windows, it would be negligible. > Typical double-pane windows have hardly changed since their invention a century ago.