With an output of 15kW, this system boiler is suitable for a home with up to 10 radiators and a bathroom. For homes with a higher demand for central heating and hot water, the Worcester Bosch Greenstar i system range has outputs of 18kW, 21kW, 24kW, 27kW and 30kW available. The Worcester Bosch Greenstar 9i and 12i are also available for homes with lower demand.
When purchasing a new or replacement system boiler, you will need to accommodate for an additional hot water cylinder which is typically located in an airing cupboard or a similar-sized space in your home. For this reason, if space is limited in your home, a system boiler may not be suitable. The Greenstar i range is also available as a combi boiler for smaller homes.
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