this is exactly what the guy said when he was showing us the therma-tite windows, which happens on lower quality vinyl windows that are recycled vinyl or not 100% virgin vinyl.quote:
The vinyl frames of the windows in the home where I live have started to warp inwards, so they longer seal against the gaskets when they are closed. These are the type that swing out around a vertical axis, using a crank. I had to silicone some of them closed, to prevent drafts.
The argon gas inbetween the panes of glass on a double-pane, or triple-pane also I guess, is supposed to slow the transfer of heat between the outside and inside glass. What happens, and I think i saw this on discovery channel, is when the airspace between the glass is heated or cooled the air circulates from top to bottom (hot air rises cold air drops) and heat energy escapes through the window through this mechanism. The argon gas does not circulate as fast (has better heat coefficient? ) and therefore slows the heat loss. Now whether argon slows the heat loss enough to make up for it's cost instead of using regular old 78% nitrogen 21% oxygen is another thing, not to mention the honesty of the manufacturer using 100% argon. I would have to do the math on heat transfer of argon vs air or do my own test on windows before I believe any manufacturer's claims.
Once you get the window, how would you ever know?