Sentinel X300 New System Cleaner (1 Litre) is a powerful chemical cleaning agent designed to remove installation debris, oils, greases, flux residues, and loose corrosion particles from new central heating systems before long-term inhibitors are added. It supports better heat transfer, improves circulation, and helps protect against future performance problems by starting the system off clean.

Function & Purpose

When a new heating system is installed—or when existing pipework, radiators, or boiler components have been replaced—various residues (such as soldering flux, metal filings, and oils) can remain inside the system. Adding X300 to the system water and running the heating breaks down and loosens these contaminants so that they can be flushed out. This prepares the system for the application of corrosion inhibitors and helps ensure efficient, trouble-free operation from the outset.

Compatibility

X300 is suitable for use in sealed central heating systems, including combi, system, and conventional boiler installations. It is formulated to work with common metals found in heating systems (such as steel, copper, and aluminium) and should be used before introducing long-term corrosion inhibitors or conditioners like Sentinel X100 Inhibitor.

How It Works

After adding X300 to the system via an appropriate dosing point (e.g., filling loop or filter connection), the system is run for a period as recommended in the product instructions. The cleaner works to break down and suspend sludge and installation debris. The system should then be thoroughly flushed (typically with clean water via a Mag-filter, pump flush, or drain points) to remove loosened contaminants before introducing corrosion protection products.

Key Benefits

Using Sentinel X300 helps improve water cleanliness early in a system’s life, which supports better heat transfer, reduced pump and boiler stress, fewer cold spots in radiators, and less noise. By removing debris before corrosion inhibitors are added, the long-term protection products can work more effectively and contribute to prolonged system life and improved efficiency.

Ideal Applications

This cleaner is ideal for new central heating installations, boiler upgrades, radiator or pipework replacements, or where significant debris is expected after repair work. It should be used as part of a complete system preparation and protection regime—clean first, flush thoroughly, then add suitable corrosion inhibitor for ongoing protection.