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Worcester Greenstar 4000 System Boiler 18kW – High Efficiency Heating Solution Vitodens 200-W commercial boiler suitable for various applications withinWorcester Greenstar 4000 18kW System Boiler Overview The Worcester Greenstar 4000 18kW System Boiler is a highly efficient gas fired boiler designed for residential heating applications. This model is particularly suitable for medium sized homes, providing reliable heating while maintaining a compact and space saving design. Key Features High Efficiency: The Greenstar 4000 achieves an efficiency rating of up to 94%, ensuring optimal energy use and
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