The Worcester Bosch Greenstar 18i System Boiler has an efficiency rating of 94% and an ErP A-rating for central heating, which could potentially help you to lower your energy bills.
With an output of 18kW, this model is ideal for homes with up to 15 radiators and a bathroom. For homes with a higher demand for central heating and hot water, the Worcester Bosch Greenstar 21i, 24i, 27i and 30i are available. However, the Greenstar i range has an option for everyone, with the 9i, 12i, and 15i also available for homes with lower demand.
It is important to note that purchasing a system boiler, that you will need space in your home for an additional hot water cylinder. This is where your hot water will be stored once heated. For this reason, a system boiler is not recommended for homes with limited space. However, if space is not an issue in your home, a system boiler is perfect for properties with a high demand for instant hot water.
