When choosing double glazed windows, one important consideration is the type of gas used between the glass panes. Argon and krypton are the two most commonly used gases, each offering distinct benefits. This article compares argon and krypton gas in double glazing and explains why argon is often the better choice for homeowners.
Argon Gas in Double Glazing
- Thermal Performance: Argon gas is a popular choice for double glazing due to its excellent thermal performance. It is denser than air, which helps reduce heat transfer between the panes, enhancing the window’s insulation properties.
- Cost-Effective: Argon is more abundant and easier to produce than krypton, making it a cost-effective option for double glazing. Homeowners can achieve significant energy savings without a substantial increase in the initial investment.
- Non-Toxic and Safe: Argon is a non-toxic, inert gas that poses no health risks. It is clear and odorless, making it safe for use in residential windows.
- Optimal Gap Width: Argon performs best in gap widths of 12-20mm, which is the standard for most double glazed windows. This makes it suitable for a wide range of window sizes and configurations.
Krypton Gas in Double Glazing
- Superior Insulation: Krypton gas provides even better thermal insulation than argon due to its higher density. It is highly effective at reducing heat transfer, making it ideal for extreme climates or situations where maximum energy efficiency is desired.
- Cost: Krypton is significantly more expensive than argon because it is less abundant and more difficult to produce. The high cost of krypton can make it less accessible for many homeowners, particularly when considering large-scale window installations.
- Optimal for Narrow Gaps: Krypton performs best in narrower gaps of 6-12mm. It is often used in triple glazing or specialized applications where space is limited but high insulation is required.
Choosing Between Argon and Krypton
While both argon and krypton gases offer excellent insulation properties, the choice between them depends on several factors:
- Cost vs. Performance: For most homeowners, argon provides an optimal balance between cost and performance. It delivers significant energy savings at a reasonable price, making it the preferred choice for double glazing.
- Application: If your windows require narrow gap widths or if you are seeking the highest possible insulation for extreme climates, krypton may be worth the additional cost. However, for standard double glazed windows, argon is typically sufficient.
- Budget Considerations: The high cost of krypton can be a barrier for many homeowners. Argon offers a more budget-friendly option while still providing excellent thermal performance.
Conclusion
Argon and krypton gases both enhance the insulation properties of double glazed windows, but argon is often the better choice for most homeowners. Its cost-effectiveness, optimal performance in standard gap widths, and excellent thermal insulation make it the preferred option. While krypton offers superior insulation, its high cost may not justify the marginal gains for typical residential applications. Choose argon for a practical, efficient, and budget-friendly solution to improve your home’s energy efficiency.