A Vaillant combi boiler is a nice solution for any home. It provides instant hot water and does not take up as much space as a classic boiler. The combi boiler is an eco-friendly gas boiler, which is why VaillantÃ¢ÂÂs line is named ecoTEC. The wide range of ecoTEC models proves that a combination boiler can serve more than just a small household. There are three ranges, including: the ecoTEC pro, the ecoTEC plus, and the ecoTEC exclusive. Each range includes models that are tailored to match the needs of different people. The ecoTEC pro includes VaillantÃ¢ÂÂs simplest heating systems of this type and offers great levels of efficiency in a small household. If you need more features, choose the ecoTEC plus, which is an advanced version of the same concept. ecoTEC exclusive provides greater capacity, is ideal for larger and older properties, and is one of VaillantÃ¢ÂÂs finest. With a Vaillant combi boiler you can equip your home with a high-quality, high-efficiency water heating solution.