Liebher is revolutionising technology in its fridges and freezers, using a vacuum in conjunction with finely ground lava stone, the raw material perlite, to insulate its appliances. The first vacuum perlite models, named BluRoX, will be on the market as early as January 2023. For the very first time, it is possible to produce freezers with the energy efficiency class “A” and “B” in accordance with EU legislation thanks to the innovative technology.
Until now, refrigerators and freezers have been insulated with conventional insulating materials made from petroleum-based polyurethane foam. Instead of these common foam elements, and in a world’s first, BluRoX uses a vacuum in combination with finely ground perlite for insulation.
Due to its crystalline microstructure, the lava stone perlite has a very low thermal conductivity, and the vacuum provides the best possible insulation in terms of energy. As Steffen Nagel, managing director sales & marketing at Liebherr-Hausgeräte explains, «for a family with a 350-litre freezer, the annual power consumption for the appliance could be reduced by up to 20 per cent – This translates into notable savings with steadily rising electricity prices.»
Moreover, the new combination of a vacuum and finely ground lava stone enables a very compact design. Due to the particularly effective BluRoX insulation, Liebherr can design the walls of a BluRoX freezer to be about one third thinner than the walls of a conventional foam-insulated appliance. For an appliance fully equipped with vacuum perlite technology, the result is about 25 percent greater capacity compared to fridges and freezers with the same external dimensions. The FNb 5056 freezer will be the first hybrid model whose door is equipped with BluRoX technology
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Liebherr focused on energy efficiency
LiebherrAppliances will remain focused on energy efficiency at the 2022 Kuechenmeile kitchen fair.
Visit this exhibition to see the latest energy-efficient integrated and freestanding appliances – all equipped with the latest freshness technologies. In addition, innovative technology such as BluRoX makes it possible for freezers to meet “A” and “B” energy classes for the first time. BluRoX technology is not only energy efficient but also allows for larger interior volume and effective resource protection due to the circular properties of the perlite.
Additionally, the launch of the new AutoDoor feature was designed especially for fully integrated appliances – the first refrigerators and freezers in the world to open and close fully automatically, helping preserve energy. You only need a light knock, a voice command, or the tap of your smart device app to open the door, and not just a little – but completely. Ninety degrees!
BluRoX: Liebherr Innovative vacuum insulation with perlite
Circular in the future. With our vacuum perlite technology , we are launching an innovation that will change refrigeration and freezing forever. may we introduce BluRoX. Instead of the conventional polyurethane (PU) foam, the new technology uses a far more effective form of cold insulation : a vacuum. Finely ground lava rock, so-called perlite, stabilizes the vacuumed components. Liebherr’s innovative BluRoX technology offers numerous advantages for people and the environment How BluRoX works and its advantages
For insulation , BluRoX uses a vacuum in connection with finely ground lava rock , so-called perlite , instead of the conventional foam elements . Liebherr explains: “A vacuum offers the best possible insulation in terms of energy. Due to its crystalline microstructure, perlite has a very low thermal conductivity. This combination creates an unsurpassed energy-efficient and at the same time compact solution for cold insulation. Because of the particularly effective insulation, the walls of a BluRoX freezer can be made about a third thinner than the walls of a traditional foam insulated unit. For an appliance fully equipped with vacuum perlite technology, the result is around +25% more capacity compared to refrigerators and freezers with the same external dimensions.
Liebherr presents its new BluRoX technology and the first device FNb 5056.
In addition, the raw material perlite is available in almost unlimited quantities. Compared to the production of conventional insulation materials from petroleum-based polyurethane, the entire process from extracting the lava rock to using it as insulation material requires fewer resources . Perlite can be removed at the end of the life of a BluRoX refrigerator or freezer and reused without significant reprocessing. Also, because the BluRoX insulation is not glued to the surrounding components, the outer shell and inner container can also be easily recycled and reused.
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