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Fernox Central Heating Protector F1 500ml (77218)

Provides long term protection of domestic central heating systems against internal corrosion, limescale formation and bacterial contamination. Prevents corrosion of all metals. Use on all types of boilers, radiators and pipework systems. Non-toxic.

  • Stops Frequent Venting of Radiators
  • Prevents Bacterial Contamination

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Qty Price per item
1 - 2 £18.99 (£37.98/Ltr)
3 + £17.08 (£34.16/Ltr)
£18.99INC VAT (£37.98/Ltr)

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Rated 4.8 out of 5 by 23 reviewers.
  • 2016-06-25 T12:20:01.211-05:00
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Rated 5 out of 5 by Excellent Stuff I've always used this stuff and it seems to work well - limiting scum in the system. I'm renovating a house - slowly - and use this on a regular basis as I have to drain and then top up the system after doing each room. Screwfix prices are normally pretty good so I add it onto the order - along with one of their radiators and a nice shiny Drayton TRV4 11 Dec 2015
Rated 4 out of 5 by The best ! -but why don't Fernox fit a cap that a tube can be affixed as presently it is difficult to pour into a radiator. It would then be a 5* product with even higher sales. 2 Dec 2015
Rated 5 out of 5 by Fernox, always good. Always used Fernox, new products have come and gone, Fernox seems to have been there forever, why change when it works. 16 Nov 2015
Rated 5 out of 5 by It works! Fernox gives real confidence. It does all expected. Always used Fernox products, recently needed to drain partially to fit a new valve. No evidence of sediment. I topped up with the F1 and several weeks later the heating is working perfectly. Fast warm up, all radiators even heat, no trapped air. 24 Oct 2015
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2 Questions  2 Answers

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9 Sep 2015
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by
Fareham
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Answer: 
Hello Nnone, the simplest explanation is that F1 500ml is a higher concentration. Both will treat 100 litres.
3 Nov 2015
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31 Jul 2015
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Anonymous,
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Answer: 
Fernox state that one bottle of the F1 central heating protector can treat up to 100L, which is up to 10 radiators but will depend on your individual system.
31 Jul 2015
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Yeovil
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  • 2016-06-25 T12:16:48.130-05:00
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Specification
Brand Fernox
Colour white
Manufacturing Standards KIWA
Model No F1
Pack Size 1
Pieces in Pack/Case 1
Product Type Central Heating Protector
Sealant Adhesive Volume 500 ml
Total Product Weight 646 kg
Volume 500 ml

KIWA.

Downloads

Safety Data Sheet (COSHH)