Protect your heating system with the Worcester Bosch Greenstar System Filter

Modern condensing boilers are precision engineered and designed to run with a clean water-heating system water that has been flushed through.

Over the course of time, dirty, smelly system water will damage a boiler and its components, causing failures which can significantly reduce overall heating efficiency. To help maintain clean system water, Worcester have introduced the Worcester Bosch Greenstar System Filter, a universal, easy-to-install and service solution, that will help maximise the life of any boiler or heat pump that it is installed with.

Damaged boiler and system Parts Failure

Worcester Bosch greenstar system filter
Polluted heating system water is a major issue for all homeowners. Domestic

Central heating systems can quickly be damaged and corroded by a wide range of unwanted system deposits when the system has not been thoroughly flushed and inhibitor added. Harmful deposits can range from tiny particles such as metal swarf and limescale, to larger solder debris and non-ferrous metal flakes. They can quickly cause blockages and also damage to key components within the boiler and heating system. Heat exchangers will also become blocked by the system contaminates, while components such as pumps and valves will also fail to work over time, increasing the chance of system failure.

Poor efficiency

When a heating system is not protected, a build-up of iron oxide (rust, sludge, scale) or non-magnetic deposits can start to happen within just 3-4 weeks, resulting in significant energy efficiency losses and fuel wastage. This reduction in efficiency can limit a boilers SEDBUK efficiency rating from band A down to band D. Such a reduction causes the boiler to work harder when trying to deliver the desired temperature, further increasing the risk of component failure. Also costing more on gas consumption to heat your home.Worcester Bosch greenstar system filter

Within a non-greenstar filtered system, radiators can become blocked, reducing the heat transfer from the system into the property. This dramatically affects the efficiency of the central heating system and the heating comfort the homeowner receives.

With a Greenstar System Filter, homeowners can save up to 6% per year on heating energy bills* whilst also benefiting from a warmer home and a quieter heating system. A Greenstar System Filter will also help protect the environment by reducing a home’s CO2 emissions.

Powerfully designed internal magnet system

At the centre of this innovative design is a highly powerful internal magnet that removes the metallic debris that is present in the system heating water. The central location of the magnet within the system filter ensures that magnetite is collected quickly and retained, maximising the overall protection of the heating system.

The Worcester Bosch Greenstar System Filter has been extensively tested in systems proving its effectiveness in removing: iron oxide, magnetite, limescale, casting sand, welding debris, non-magnetic metal flakes, paint particles and other system pollutants.

The filter has been specified, designed and tested to Worcester’s exacting quality standards. For example, the O-rings are specified using the same compounds that are found on our market leading boilers. The robust filter body has been pressure tested to 45 bar.

Any non-magnetic debris is caught by the twin-action cyclonic trap, a proven technology that offers a capacity to collect up to 200g of magnetite a year.

The effectiveness of the Greenstar System Filter is based on its innovative cylindrical design, which allows the maximum possible surface area of the magnet to be exposed to the heating system water.Worcester Bosch greenstar system filter

This cylindrical shape channels the water in an upwards spinning motion, assisting in the twin-action filtering process, whilst also providing a large capacity for captured system pollutants.

Maximum debris collection through cyclonic motion

As the diagram demonstrates, the Greenstar System Filter leads system water directly to the highly powerful magnet that is integrated inside. This has the effect of forcing water around the magnet causing the water to move upwards in a cyclonic motion. This motion maximises the contact of the system water with the magnet, whilst also increasing the time that the water remains within the filter. In this process, any magnetic system pollutants or debris will be drawn onto the magnet sheath and will remain there until the filter is cleaned.

Non-magnetic debris are forced over the cyclonic trap which has specifically designed surface inlets that allow both small and large particles to be trapped within the base of the filter. Importantly these inlets are designed in-line with the spinning motion of the system water flow, ensuring no particles escape back into the system.

*Independent research carried out by GASTEC at CRE.