Rated 5 out of 5Â by are59 Quality Inhibitor
Have used Fernox products in my central heating systems for the past 20 years and have always been happy with performance.
I like the smaller volume required with the F1 product.
10 Nov 2014
Rated 5 out of 5Â by TimeServedElectrician I wouldn't use anything else
Last year I flushed my system using F3. I then refilled it and used F1. Just recently I needed to change a large radiator for a smaller one in the kitchen. Due to kitchen refurbishment nothing to do with problems with the heating system. On draining the system I was amazed to find that the water coming out of the drain tap was all but clear. So guess what I put back in? I wouldn't use anything else. Also it's guaranteed for 10 years, what more could you want.
20 Sep 2014
Rated 5 out of 5Â by dune inhibitor
does what it says on the bottle ease of use, well packaged
1 Jul 2014
Rated 5 out of 5Â by newbuildnutter best brand
got the best as its on offer needed enough bottles to do 500 litre thermal store so price was an issue 5 stars all round
8 Jun 2014