What is the best central heating system cleaner?

X400 High Performance Cleaner is the best central heating cleaner for this job as it breaks up, lifts and suspends this sludge, then allowing it to be flushed out of the system.

How long does it take for X400 to work?

To clean an existing system Sentinel X400 should be circulated, preferably at normal operating temperature, with all valves open and the pump turned to a maximum flow for a minimum period of 2 hours or until satisfactory performance is restored.

How long can you leave central heating cleaner in?

However, to remove hardened iron oxides and limescale, the cleaning time can be extended to up to 1 week under the normal heating cycle. If, a radiator still has a cold spot after 1 hour, increase the flow through the radiator by closing the valves on the other radiators.

How long can you leave Sentinel X400 in the system?

approximately 3-4 weeks
Sentinel X400 High Performance Cleaner can be left in the system for approximately 3-4 weeks.

How long can you leave fernox F3 in system?

one hour
Fernox Cleaner F3 or Cleaner F5 should be added to system water and circulated hot for at least one hour after which the system must be drained and flushed until the water runs clear. The cleaning time can be extended to up to one week for systems which suffer from hardened iron oxides and limescale.

What causes boiler sludge?

Sludge is a water-formed deposit which can include all solids carried by water. It reduces heat efficiency levels and can create scale formation in boilers. How Does Sludge Form? Sludge build-up forms when suspended materials found in the water stick onto the inner surfaces of hot boiler tubes.

Can you leave central heating cleaner in too long?

It can be left in the system for extended periods, but to ensure a complete clean, it should be thoroughly drained and flushed from the system before final filling and treating with an inhibitor.

How do I clean the sludge out of my heating system?

To get rid of central heating sludge, you will need to do a power flush either by using a magnetic power flushing machine or by using an heavy duty power flushing machine.

How to dose Sentinel X400 central heating cleaner?

For full sealed systems, use a Sentinel Dosing Vessel to inject via the filling loop or other access point. Sentinel X400 High Performance Cleaner is also available in Rapid-Dose aerosol and Concentrate gel formats.

Which is central heating cleaner do you use?

Not open for further replies. Now that I’ve got my central heating system working properly (see thread ‘2 cold rads’) should I run some cleaner through the system and if so should I use Fernox F3 or Sentinel X400?

How long does it take to clean a central heating system?

Larger systems should be dosed with twice this amount. To clean an older system in accordance with BS 7593, this product should be circulated (preferably at normal operating temperature, with all valves open and the pump turned to maximum flow) for a minimum period of 2 hours or until satisfactory performance is restored.

How many radiators can Sentinel High Performance cleaner treat?

Please try again later. 1 litre, 1 300ml aerosol or 1 275ml tube of Sentinel X400 High Performance Cleaner is sufficient to treat a typical domestic system of up to 10 radiators. Larger systems should be dosed with twice this amount.