Worcester Bosch 4000 25kW Combi Boiler with 15mm Scale Reducer

The Worcester Bosch 4000 25kW Combi Boiler with 15mm Scale Reducer is a premium heating package designed to provide reliable central heating and instant mains-pressure hot water for small to medium-sized homes. Supplied with a 15mm Scale Reducer, this complete solution helps minimise limescale build-up in hard water areas, protecting the boiler and maintaining long-term efficiency and performance. The Greenstar 4000 is one of Worcester Bosch's quietest and most advanced combi boilers, delivering outstanding comfort, energy efficiency, and everyday reliability. Part of the award-winning Worcester Bosch Greenstar 4000 range, this boiler features QuickTap® hot water...