BluENERGY is the basic product of the exclusive passive windows line from Abakus. In this solution, our joinery is made with a profile from Salamander Window & Door Systems—a leader in quality on the European market. Excellent components and precise machining ensure that bluENERGY windows meet the strict conditions posed before manufacturers of passive designs. Aesthetic minimalism, ergonomics and superb thermal insulation are qualities that have determined the success of this product. The purchase of bluENERGY windows is a good decision that will leave you satisfied for years.