Uploaded on 2014-11-19 by LeventeBorenich

[1]: https://edxuploads.s3.amazonaws.com/1416407603220112.jpg Insulation is the best way to reduce your heating bill. In Hungary a lot of public buldings are being modernized. The most frequently used material of insulation is glass wool(which you can see on the picture). This is a man-made material, so you can manufacure it in every country. In Europe for the best quality you may choose a German product.