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NFRC Performance Data

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Energy Star Zone:
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For greater energy efficiency, argon is added to all Low-E glass units, at no cost to the customer, with the exception of those units requiring capillary/breather tubes. These units include, but are not limited to, glass 12” and less in width or height and units shipped over high elevations. Timeline does not guarantee that the initial argon fill rate will be maintained over the life of the product. Argon depletion may decrease energy efficiency. SDL without internal grid will have the same U-Value as a one lite unit. For more information, contact your local distributor or Timeline Vinyl Products, Inc.

Due to ongoing product changes, updated test results or new industry standards, this data may change over time.