Fernox TF1 28mm central heating filter £50 @ Screwfix
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Fernox TF1 28mm central heating filter £50 @ Screwfix

30
Edited by:"Bogart"Found 23rd Oct
For some reason the 28mm version is on offer at £50 which is a very good price. Speaking from experience definitely works.

30 Comments

That’s a great deal

Cheap way to DIY down to 22mm here.

Great price. Few systems have 28mm, but can he reduced as mentioned. All systems should have one of these.

Hot and hot rads also
Win win.

Great spot - bought - just need to figure out where I can put it now....

okosanto37 m ago

Great spot - bought - just need to figure out where I can put it now....


From memory the destructions for the fernox one I have been meaning to fit for months it says to fit it close to the boiler on the return side.

themorgatron1 h, 50 m ago

Cheap way to DIY down to 22mm here.

These reducers are quiet tricky use a dab of LS-X to make the seal tighter

That is a good price well spotted and it's a dosing point so you can drain, flush, refill then you add inhibitor through the filter

Good deal but doesn’t seem to be any in stock

mahmouddiaa27 m ago

These reducers are quiet tricky use a dab of LS-X to make the seal tighter


Will that stuff work on the misses too?

Good spot

"The Fernox TF1 Total Filter is supplied ready to install into vertical pipe work with system water flowing upwards .Further installation instructions are provided with the unit."

Which is a pain in the backside if you have a floor mounted boiler where the return comes up through the floor and goes into the boiler just above floor level. Ah well. I've managed without one for nearly 40 years so I'll just have to cope.

mahmouddiaa3 h, 3 m ago

These reducers are quiet tricky use a dab of LS-X to make the seal tighter


You shouldn't need any sealant on a compression fitting but LS-X, Hawk White or whatever will give a bit of lubrication and might make assembly a bit easier. As with any compression joint, don't over tighten.

I bought the updated metal version of this called tf1 omega after reading plumbers forums saying this one had some basic design flaws. You can get the 22mm version with fitted stop valves for £77.

Original Poster

GoNz0-11 h, 6 m ago

From memory the destructions for the fernox one I have been meaning to fit …From memory the destructions for the fernox one I have been meaning to fit for months it says to fit it close to the boiler on the return side.



That is the ideal position but anywhere on the system will help greatly.

Original Poster

tapster10 h, 22 m ago

Good deal but doesn’t seem to be any in stock



In stock at my local branch and seems to be in stock online!

looking for space saving than the magnaclean i have.
Edited by: "ssc1" 24th Oct

ssc113 m ago

looking for space saving than the magnaclean i have.


I have the Magnaclean Micro 2. As well as the body being shorter, the integrated connection/stopcocks are a lot smaller and neater than the Fernox and the canister can be removed completely for cleaning. Can be bought for about 75 quid.
Edited by: "nihcaj" 24th Oct

Is it me, or are these difficult to flush, nightmare trying to seal the unit afterwards.

mahmouddiaa12 h, 5 m ago

These reducers are quiet tricky use a dab of LS-X to make the seal tighter


I've never used LS-X in my life. It's a bodge and a nightmare to remove. A bit of PTFE wrapped over the olive works every time.

Thanks OP - been intending to get one of these for a while now as the house we moved into last year had several sludged/blocked radiators (all since replaced/flushed). I think my ancient oil boiler has 1" (28mm compatible) pipework too so this will likely be the right size with reducers needed and should allow me to clean out any remaining muck in the system. I also used a £10 discount voucher that Screwfix sent me in the post last week, so a definite bargain in my opinion!

rdann4 h, 29 m ago

Is it me, or are these difficult to flush, nightmare trying to seal the …Is it me, or are these difficult to flush, nightmare trying to seal the unit afterwards.



Reviews on the Screwfix website for the 22mm version imply that there was a design change a couple of years ago which resolves the issue with the threaded seal at the top.

Waste of money. If you had your system fitted correctly, and you stick inhibitor in, you don't need this hokum! I suspect you all use Hopi Candles, too?

M1LFHunter1 h, 42 m ago

Waste of money. If you had your system fitted correctly, and you stick …Waste of money. If you had your system fitted correctly, and you stick inhibitor in, you don't need this hokum! I suspect you all use Hopi Candles, too?


You should know that people on here love wasting their money on stuff like this. I love the dehumidifier deals best

Original Poster

M1LFHunter5 h, 34 m ago

Waste of money. If you had your system fitted correctly, and you stick …Waste of money. If you had your system fitted correctly, and you stick inhibitor in, you don't need this hokum! I suspect you all use Hopi Candles, too?



Wondered how long it would take the idiot comment to arrive

Bogart2 h, 18 m ago

Wondered how long it would take the idiot comment to arrive



Though in some ways, he's right. Central heating systems have been around far longer than pressure flushing systems, filters and whatever other geegaws they'll try to sell you. Inhibitors, if used correctly and replaced regularly, should prevent any problems.

Original Poster

Ah yes you made a crucial statement there "and replaced regularly" most think inhibitor will last forever.

qbs24th Oct

Though in some ways, he's right. Central heating systems have been around …Though in some ways, he's right. Central heating systems have been around far longer than pressure flushing systems, filters and whatever other geegaws they'll try to sell you. Inhibitors, if used correctly and replaced regularly, should prevent any problems.


Some?

I think there's just as much of an argument that inhibitors are a waste of money.

Those Germans don't feel the need for either.

Original Poster

Well do the classic nail in a jar of central heating water. Just water will have the nail rusty in a few days at most. Will be replicated on the inside of any steel radiators you have.
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