Vaillant’s range of ecoTEC high efficiency domestic gas boilers combines the finest German engineering and British manufacturing, to give you outstanding performance and long lasting reliability from your heating system. All of our ecoTEC boilers are high efficiency gas boilers made with the highest quality components, and are backed up with market leading guarantee packages. Combination Boilers
This popular type of boiler heats hot water as you need it. There is no need to install a hot water cylinder or cold water tank, as the boiler is connected directly to the water mains – perfect for homes with limited space and a smaller hot water requirement. System Boilers
This type of boiler works together with a hot water cylinder, but usually doesn’t require a cold water tank, as the system can be filled directly from the water mains. This type of system benefits from having an electric immersion heater within the cylinder which means you can still have hot water even if your boiler breaks down.