Having for years if not for decades with different kettles the environment have stressed, since one always makes a lot more water hot or boil as it takes to brew such as a cup or pot of tea, I'm a few years ago on the Quick & Hot-System switched from Tefal. I thought until recently, that would be the ne plus ultra. What has always bothered me here, on the one hand, the price of the filter cartridge, which is really unacceptable. On the other hand, the temperature (max. 70 ° C the UN) is not necessarily what you would expect from boiling or at least boiling hot water. So I looked around and the Bosch Filtrino discovered who has turned out to be for my needs than the absolute highlight in terms of "hot and boiling water." The water temperature can be set to 4 different levels (70 °, 80 °, 90 ° and cooking) and also the throughput rate can be regulated for its own needs. The highlight is the Brita Maxtra filter system that allows addition, even room temperature water to filter if necessary. In addition, the corresponding cartridges are included in the price much cheaper to buy than the previous ones. Thus, the new acquisition was worth double for me.