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Fernox F3 Central Heating Cleaner 500ml (51463)

Quick and effective neutral cleanser. Removes debris, sludge and scale, restoring efficiency. Non-toxic.

  • Can be Used with Powerflush Machines
  • Suitable for All Heating System Metals

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£17.99INC VAT (£35.98/Ltr)

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Fernox F3 Central Heating Cleaner 500ml is rated 4.6 out of 5 by 10.
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Rated 5 out of 5 by from Noisy boiler Put this in the header tank, as the boiler was getting noisy, after draining the system and refilling, I ran the heating for a couple of hours and the noise issue has gone. Will drain down again after a week, and refill, using F1.
Date published: 2016-12-31
Rated 5 out of 5 by from Good product Good quality product seems to have done the trick good price
Date published: 2016-10-29
Rated 4 out of 5 by from Simples! Easy enough for the home DIY'er to apply to header tank after draining the system, let it work, refill and redrain. Unfortunately it was too late for me to avoid a new pump install but have Fernox f1 inhibiter to put in the tank to help prevent future clog ups.
Date published: 2015-07-22
Rated 5 out of 5 by from Superb Cleaner I've had an extremely noisy heating system for the last year, put one bottle in and no result. drained down and put three bottles in, no result for three days and I finally slept through heating coming on in the morning. Brilliant product would recommend it to anyone.
Date published: 2014-12-21
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How much do we need?

we've 13 radiators; how much do we need, please?
Asked by: JY17
Hello JT17. The Fernox Central Heating Cleaner F3 500ml is designed to dose up to 100ltrs of system water, which would roughly equate to 10 single panelled radiators. If you have 13 single panelled radiators, 2 x 500ml bottles of F3 central Heating Cleaner would be sufficient. If you have double panelled, count these as two radiators each, (so 13 x 2 = 26) meaning 3 x 500ml bottles would be sufficient for dosing. If you have a mixture, as said before, count any double panels as two radiators and you should be able to work this out. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-04-18

How long can you leave it in the central heating system before you have to flash it out?(combi boilar)

Asked by: BusDriver
Hello BusDriver. We recommend leaving Cleaner F3 in your system for a maximum of 7 days. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-04-29

I have mix of copper and plastic piping, can this be used in systems with plastic piping?

so far, it only looks like metalwork is suitable, but majority of my system is linked with plastic pipes
Asked by: oz44
Compatible with all metals and materials commonly used in heating systems From here; http://www.fernox.com/products/water+treatment+chemicals/cleaners/cleaner+f3 Considering how many new builds include speedfit it's probably fine. F1 protector specifically mentions plastic as fine to use.
Answered by: daiz1981
Date published: 2017-02-05

Can this be added to the header tank?

My feed pipe seems to be blocked so if I drain the rads to add the cleaner it won't refil
Asked by: Johnboychap
Hello Johnboychap. The F3 Central Heating Cleaner 500ml can be dosed into a Central Heating system from the header tank. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-05-21

is fernox 3 cleaner suitable for indirect cylinders

Asked by: ellaemm
No, In single feed indirect cylinder, e.g. 'Primatic' or similar, potable water chemicals must be used.
Answered by: Fernox Client Services
Date published: 2017-05-05
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Specification
Brand Fernox
Manufacturer Guarantee 1 Year Guarantee
Model No F3
Pack Size 1
Pieces in Pack/Case 1
Pieces in Pack/Case 1
Product Type Central Heating Cleaner
Volume 500 ml

Downloads

Safety Data Sheet (COSHH)