The introduction of gas into the cavity of a double glazed unit reduces the heat conductance between the panes, helping to keep more heat in during the winter and out in the summer. As a result living and working conditions become more comfortable the whole year round. The thermal insulation is further improved by using a Low e energy saving glass on one side of the sealed unit.
This combination of Gas and Low e energy saving glass can achieve an improvement in thermal performance in the region of 50% over and above that of a standard sealed unit. The standard gas used for thermal insulation is Argon. Apart from its heat insulation properties, Argon is non-toxic, sunlight stable, non corrosive, colourless and odourless.
The product offers three gas filled options with Argon being the standard. Krypton gas is denser than Argon, and Xenon gas is denser than Krypton, providing somewhat more thermal efficiency.