The energy consultant is recommending Schuco windows and sliding glass doors due to their energy efficiency. With the triple pane krypton filled glass package they are like R-10. I don’t want to replace all 21 windows for $19,000, but am looking at possibly replacing the 4 sliding glass doors for about $8,300. My wife and I were up at BJ’s last night and saw a display for BJ’s home improvement. I they had Schuco windows. So I filled out a card, and hope to hear from them and see what kind of price they give me. A little competition is a good thing. I want to make sure I am not paying too much for the doors.