What is Argon gas used for?
Argon and other inert gasses also will reduce the loss of heat through an insulating glass unit. Since inert gasses are heavier than air, their molecules do not move as easily. This makes the space between the panes of glass in the window less conductive. Inert gasses between the two panes of glass make it more difficult for the warmer inside air to pass through the glass to the colder outside. With lower heat loss, the R-value is increased.
