Very easy. Switch your water off. You shouyld have a means to do this near your small water tank which is probably in your loft. Drain your system. Just a hose pipe on the drain taps on probably two of your downstairs rads. pop the F3 in your small tank in the loft and turn the water back o. remember to close ther rad draining taps first. You'll need to let the air out of your rads (bleed) when you drain and refill your system. Keep it in for a week and then drain the system to remove sludge. When you refill for the second time add F1 and leave it in. E.ON told me i needed a powerflush to sort out my boiler problems (£400) but a friend told me about this. Used this and haven't had any boiler issues since

Fernox 56600 500ml F3 Cleaner

Q: Is this product suitable for oil fired central heating system. A plumber just told me to buy Fernox stuff but I see there are a few different kinds?

What heats your water/heating doesn't matter: it's more important if it's a vented or closed/pressure system. If its standard open vent, ie: it has a tank up in loft, any good quality system cleaner will do. Fernox F3 is a good gentle cleaner that won't be too aggressive as on old pipework, you can make problems with very strong stuff!

Q: To Supplier It says this 500ml but then under size name it says 275ml which is it pleased is it just amazon listing error?

Hi, It’s 500ml. As stated ‘ Fernox 56600 500ml F3 CleanerFernox 56600 500ml F3 Cleaner’ must be an error

Q: Can this be used in car cooling system as a flush?

Technically, it seems, using it in a car is less hazardous then indoors. But it depends on the amount you use. Household central heating systems do not use rubber seals or washers, but car cooling systems do, this may damage rubber seals or washers over a period of time.

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Product ID: 48819827

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Details

Brand
Fernox
Item form
Liquid
Scent
Unscented
Material feature
Central
Item volume
500
Unit count
500.0

🔧Compatible with All Metals

🧪500ml Cleaner

⚙️Cleans 100L System

Frequently Bought Together

Fernox 56600 500ml F3 Cleaner

Fernox 56599 F1 500 ml Central Heating Protector

QuickFill - SEL9260: Central Heating Dosing Tool - Add Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 to Your Central Heating System

Description

🔥 Clean Up Your Act with Fernox!

NON ABRASIVE FORMULA - Gentle yet effective cleaning for lasting performance.
ECO FRIENDLY EFFICIENCY - Achieve up to 15% gas savings with Protector F1.
PRE COMMISSIONING POWER - Perfect for new systems, compliant with BS7593:2006.
UNIVERSAL COMPATIBILITY - Works seamlessly with all common heating materials.
REVITALIZE YOUR HEATING SYSTEM - Say goodbye to sludge and debris!

Fernox 56600 F3 Cleaner is a powerful 500ml solution designed to remove sludge, flux, and debris from both new and existing central heating systems. It treats up to 100 liters or 10 single radiators and is compatible with all metals and materials commonly used in heating systems. When paired with Protector F1, it can help achieve significant gas savings, making it an essential tool for maintaining efficiency and performance.

Specifications

Manufacturer	Fernox
Part Number	56600
Package Dimensions	18.2 x 8.7 x 4.9 cm; 678 g
Item model number	56600
Size	500 ml (Pack of 1)
Item Package Quantity	1
Number of Pieces	1
Special Features	Non Abrasive
Batteries included?	No
Batteries Required?	No
Item Weight	678 g

Have a Question? See What Others Asked

is it easy to use

Is this product suitable for oil fired central heating system. A plumber just told me to buy Fernox stuff but I see there are a few different kinds?

To Supplier It says this 500ml but then under size name it says 275ml which is it pleased is it just amazon listing error?

Can this be used in car cooling system as a flush?

Common Questions

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