Ferroli Sigma 40-60 boiler

[redcuckoo]

Hi,

Can anyone give me a few of their opinions on what they think of the Ferroli Sigma 40-60 boiler. I have one installed that is fitted downstairs in an out build at the back of my property. The property is 2 terraced houses knocked into one and the boiler has to heat up 7 rads but only 1 ever gets red hot, nevermind how high i put the dial temp on the boiler. Im just wondering if this boiler isnt up to the job and maybe its time for a replacement of a better make and model. Ive had this problem since the boiler was fitted yrs ago but its gradually got worse now to the stage where the furthest rad never even gets lukewarm.

Be grateful of any of your expert help!!!! Thanks.

 

[Leo21]

How old is the boiler, there renowned for being rather rubbish. In this instance it's hard to say weather the boilers at fault or not. Lift the smallest rad of and see if it's got loads of sludge in it. If it's ok, your looking at (dare I say it) pump issues or some form of restriction.

 

[redcuckoo]

Im sure its well over 6/7 yrs old. Ive flushed the system out recently to change all the valves on the rads just incase any of them were sticking & i had the water running clear but still i had the same problems.

 

[Leo21]

Sounds like your boiler then.

 

[lame plumber]

lets all start to behave properly and stop rubbishing certain brands for what ever reason and actually offer some decent advice to the op. The guy states he has flushed his system checked the valves arent stuck and all seems ok. Straight away the first thing we should advice is to ensure his system is balanced properly to achieved the correct delta T across each rad and in and out of the boiler. Only one rad ever gets red hot he says!!!, not sure I'd want a red hot rad but obviously there isnt a problem with the boiler if one rad is heating ok, so he needs to look else where as I suggested. If he cant balance the system, he could look at the pump and check all his flow pipes are warming ok and there isnt a blockage. Then the op might actually get to the bottom of his problem without going and replacing a working boiler and finding none of his rads work still!!!

 

[Leo21]

lets all start to behave properly and stop rubbishing certain brands for what ever reason and actually offer some decent advice to the op. The guy states he has flushed his system checked the valves arent stuck and all seems ok. Straight away the first thing we should advice is to ensure his system is balanced properly to achieved the correct delta T across each rad and in and out of the boiler. Only one rad ever gets red hot he says!!!, not sure I'd want a red hot rad but obviously there isnt a problem with the boiler if one rad is heating ok, so he needs to look else where as I suggested. If he cant balance the system, he could look at the pump and check all his flow pipes are warming ok and there isnt a blockage. Then the op might actually get to the bottom of his problem without going and replacing a working boiler and finding none of his rads work still!!!

Theres no way it's going to be balancing, if only one rad works out of seven! If the systems clean, it's either restriction in or out of the boiler, or pump. End of!
and I said ferrolis were generally regarded as rather rubbish. Do you disagree? After all it's not an Intergas.

 

[newcastle phill]

How was it flushed.
Can you talk us through how it was done

 

[lame plumber]

Theres no way it's going to be balancing, if only one rad works out of seven! If the systems clean, it's either restriction in or out of the boiler, or pump. End of!
and I said ferrolis were generally regarded as rather rubbish. Do you disagree? After all it's not an Intergas.[/QUOTE

one rad works fine!! the clues there, I disagree that because the brand is regarded as rubbish that it automatically needs replacing, other wise I feel some advice on here is utter crap.

 

[Leo21]

Theres no way it's going to be balancing, if only one rad works out of seven! If the systems clean, it's either restriction in or out of the boiler, or pump. End of!
and I said ferrolis were generally regarded as rather rubbish. Do you disagree? After all it's not an Intergas.[/QUOTE

one rad works fine!! the clues there, I disagree that because the brand is regarded as rubbish that it automatically needs replacing, other wise I feel some advice on here is utter crap.

Lame, remind me when I said the boiler needs renewing? Have you ever seen a seven rad system that needed balancing to that extent? I had a similar situation recently, the diverter on the flow outlet had an opening the thickness of a pencil, and about 4inches in the flow pipe.

 

[drip-dry]

Well as system water is getting hot the boiler seems to be operating ok and down to circulation problem...take it this problem started once boiler replaced and system worked ok before?...how come you did not take up with installer?....any how...would try turning pump round first and see what happens with a bit of reverse circulation

 

[redcuckoo]

It was never as bad as it is now. Gradually its just become worse. Is it ok to turn the pump around??? What is the effect if you was to do that by mistake when changing the pump???

 

[lame plumber]

Sounds like your boiler then.

sorry if you meant repairing!

 

[Leo21]

sorry if you meant repairing!

No worries Lame, a miss understanding.

 

[IDCHAPPY]

Balancing

 

[newcastle phill]

Make sure its well balanced.
Do it with a chip on each shoulder