Boiler kettling (a little)

[counterofbeans]

I have an 18 year old Ideal Classic boiler.

It kettles a little, mostly on HW, less on CH.

Boiler is set low at 2 (out of 6) as any higher the kettling is worse.

Pump speed is set at 2 (out of 3) as any higher I can hear the CH "whooshing" round the house.

I can put up with it but are there any easy fixes short of a new boiler?

Many thanks for any advice.

[counterofbeans]

forest07 said:

Simpo Two said:

If it's anything like my Ideal Elan it's scale in the heat exchanger - call in your local trusty CH bod. There is descaling fluid you can tip in the top, leave it for a week or two, then flush it out and refill.

+1 Scale or sludge in the heat exchanger. Descaling fluid may work, or have it flushed by someone competent. The Classic was a good boiler, I still have one.

Edited by forest07 on Saturday 18th November 11:12

Thanks both.

Is it worth having the heat exchanger replaced?

[counterofbeans]

Simpo Two said:

counterofbeans said:

Is it worth having the heat exchanger replaced?

Is the part still available?

It does seem to be - the boiler is an FF260 - but it appears to cost nearly £500. So probably not worth it then (I suppose that's 50% of a new boiler).

I will try the tool station stuff - many thanks for the tip.

[counterofbeans]

So I have a litre bottle of Calmag - can I just add it to my system (via the rad/towel rail in the bathroom) or do I have to remove a litre of water from the system first?

As far as I know the system is not sealed / pressurised as I'm fairly certain there's a small header tank(s) in the loft.

What happens if I just chuck it in? Or will I not be able to do that?

p.s. so sorry for asking such dopey questions, but I really want to avoid having to get a plumber out to put some cleaner in!