Ideal Isar HE30 heat exchanger seals

[davhill]

Hi, from a non-plumbing newbie,

I have an Isar HE30, which was fitted at my late mother's flat under the Warmfront scheme. I now use the flat as a holiday apartment and the boiler has just turned into a water feature for the third time.

This far, the boiler has been regularly serviced, had a total rebuild and a new diverter valve when it failed. What has now happened three times is that the plate heat exchanger seals have failed (i.e. the O-rings have been blown out of place). This gives a serious water leak (1.5 metre wide puddle on the floor). The boiler goes 'bang' when this happens.

On this problem, the boiler has had two new exchangers. It already had a water expansion chamber in the incoming pipework (dunno what it's called) and it now has an adjustable pressure regulator, set to (I believe) 4 bar. And it's let go again.

Experience with another installation has shown that this boiler is a pile of poo. But has anyone any idea what can be done to stop this problem occurring? And, if I have to bin the thing, what's a good replacement to go for?

Many thanks.

 

[Billy Bob Bob]

baxi duotec ideals are tat

 

[cjg]

ya, ok gasman i agree most are but as you see he has it at 3bar,, should be only 1 1/2bar

 

[villa_tom]

It should be between 1 and 1.5 bar, and it will rise on its own when in use. I really would just scrap the thing and start again it will just cost you more in the long run

 

[Billy Bob Bob]

were does it say at 3 bar? cant find it

 

[cjg]

and it now has an adjustable pressure regulator, set to (I believe) 4 bar. lol my friend.

 

[Billy Bob Bob]

4 bar interesting prv should be doing a jig

 

[cjg]

not if the bleeding thing is full of gunk and that other stuff like number 2, , just off topic whats the score on "B" rated i thought you can not fit now?

 

[Billy Bob Bob]

b rated a no no

 

[villa_tom]

just off topic a little but what have they done with all the B rated boilers left over, surely they can't have all been sold.

 

[cjg]

on flee bay!!!!!! and he will fit for £900 all in baxi potterton performa if i rememmber right

 

[Billy Bob Bob]

all the 105he and performas are in my reps possession hes gonna do me a deal joking lol if you ask you will find

 

[villa_tom]

just got me thinking, I have a B rated boiler at home so it might be worth if i can find one buying its for parts

 

[davhill]

Well, thanks, people,

I only believe it's at 4 bar...I'm not certain. I want to be able to advise the engineer when he shows on Monday.

So, keep the ideas coming

 

[Billy Bob Bob]

Vastly Superior Log Splitting Maul Splitter Axe Wood | eBay UK
this should solve all of your ideals problems just remember to hit it very hard

 

[davhill]

Perfect!

 

[Blackcatgas]

4 bar interesting prv should be doing a jig

I think he means the incoming water pressure?.

 

[pobsdad]

Reducing valve at 4 bar.