The Worcester Bosch Greenstar accessory pack provides heating engineers with a comprehensive suite of essential components required for a best-practice combi boiler installation. Consolidating primary system accessories into a single package, it facilitates compliance with the latest building regulations while safeguarding the long-term reliability of the heating infrastructure. The bundle contains a 22mm Greenstar mini system filter, engineered to capture suspended magnetic and non-magnetic debris, thereby protecting sensitive boiler components such as the heat exchanger and circulation pump from premature wear.

In addition to the physical filtration unit, the pack includes a Comfort II RF wireless programmer, offering end-users intuitive and precise control over their ambient heating schedules. The inclusion of a keyless filling link simplifies system repressurisation without the need for manual tools. Furthermore, premium 400ml chemical treatments—specifically cleaner and inhibitor fluids—are supplied to thoroughly flush out existing sludge and prevent future internal corrosion, ensuring the central heating circuit maintains optimal thermal efficiency.

Q: Which specific boiler models are suitable for use with this kit?
A: This pack is strictly intended for the CDi Compact, Si, and i combi ranges, and is incompatible with the 4000 series.

Q: What type of system filter is provided within the bundle?
A: A compact 22mm mini filter is included, designed for straightforward installation in confined spaces near the boiler.

Q: Are chemical treatments supplied in the package?
A: Yes, it includes both a 400ml system cleaner and a 400ml inhibitor to protect the internal pipework.

Q: How does the included filling link operate?
A: It features a keyless design, allowing homeowners to safely and easily top up system pressure without external hoses.