Combi boilers are ideal for smaller homes as they work as both a water heater and a central heating boiler, wrapped into one cost-effective unit. Combi boilers remove the need for any additional hot water cylinder or cold water tanks, meaning they can be installed neatly in your standard kitchen cupboard.
The Vaillant EcoFit Pure 825 combi boiler has a central heating output rating of 19.1kW, which is perfect for smaller homes with up to 10-15 radiators. It also has a hot water output of 25.2kW, ideal for homes with a single bathroom. The EcoFit Pure 825 is the least powerful in its range, therefore, if you feel that your home has a higher demand for heating and hot water, the EcoFit Pure 830 and 835 are also available.