Y
Failed boiler upgrade.
- Thread starter themechanic
- Start date
can't you do better amateur plumber?
Gents, before this thread is locked as being abusive and not informing the OP, why not make some helpful suggestions.
To the OP:-
Your "plumber" has probably never met a one pipe before. They do need some special care and are not ideal but many of us manage to make them work reasonably well.
The key is to forget about fitting the "normal" restrictive TRVs and because the correct type is so expensive most dont fit any.
The next aspect is setting the boiler's engineer settings to best manage the special characteristics of a one pipe.
Now the advanced aspect. The nature of the traditional one pipe is that the flow to the rad is by thermal gravity flow. This is not very efficient. The best installations used "swept" tees and that was quite good but they were expensive and so rarely used.
There is a way that I quite like to improve the performance with a condensing boiler and that is to add an iso valve in the pipe under each rad to increase the flow through the rad itself.
Another interesting way and particularly relevant to those systems using 15mm ( usually actually 1/2" ) is to connect a new flow pipe to the centre of the loop and convert it into TWO one pipe circuits instead of one.
Whatever solution is chosen, they do need understanding and a little time to get the boiler settings at the optimum.
As many one pipes in small houses used inadequate heat output, adding a couple of additional parallel connected rads helps maintain the boilers prefered operating parameters and increases heating output.
Tony Glazier
To the OP:-
Your "plumber" has probably never met a one pipe before. They do need some special care and are not ideal but many of us manage to make them work reasonably well.
The key is to forget about fitting the "normal" restrictive TRVs and because the correct type is so expensive most dont fit any.
The next aspect is setting the boiler's engineer settings to best manage the special characteristics of a one pipe.
Now the advanced aspect. The nature of the traditional one pipe is that the flow to the rad is by thermal gravity flow. This is not very efficient. The best installations used "swept" tees and that was quite good but they were expensive and so rarely used.
There is a way that I quite like to improve the performance with a condensing boiler and that is to add an iso valve in the pipe under each rad to increase the flow through the rad itself.
Another interesting way and particularly relevant to those systems using 15mm ( usually actually 1/2" ) is to connect a new flow pipe to the centre of the loop and convert it into TWO one pipe circuits instead of one.
Whatever solution is chosen, they do need understanding and a little time to get the boiler settings at the optimum.
As many one pipes in small houses used inadequate heat output, adding a couple of additional parallel connected rads helps maintain the boilers prefered operating parameters and increases heating output.
Tony Glazier
Agile";p="1805760 said:Gents, before this thread is locked as being abusive and not informing the OP, why not make some helpful suggestions.
So what you are telling the OP is , other than bogging the existing one pipe system up the only way forward is two convert it to a two pipe system. Well done, don`t know why I did not think of that.
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Op, five things you or your installer needs to do before any pipework or valve alterations. Adjust the heating load (D.0 diagnostic code) to 14kw. Adust the pump over-run time (D.1) to 10minutes. D.2 to 15 and D.19 to 3. Finally screw in the system bypass fully on the diverter valve.
I've got a couple of systems on one pipe where I look after the boiler and an ecotec will work with a few tweaks. Generally a flow temperature of 60c and above works ok. But as mentioned previously it won't be fantastic.
I've got a couple of systems on one pipe where I look after the boiler and an ecotec will work with a few tweaks. Generally a flow temperature of 60c and above works ok. But as mentioned previously it won't be fantastic.
amateur plumber ????? I don't think so ! he's probably forgotten more than alot or most know ???
Y
YELLERBELLY
amateur plumber ????? I don't think so ! he's probably forgotten more than alot or most know ???
sorry to upset your boyfriend
Very good Bunny 831 
A vorsprung Durch Teknik Plumber with a sense of humour
A master of the one liners perhaps ? or will I be dissapointed ?
Incidentally would you be interested in a Ravenheat perhaps ? csi 85 , or a 120 silver low nox combi ??
A vorsprung Durch Teknik Plumber with a sense of humour A master of the one liners perhaps ? or will I be dissapointed ?
Incidentally would you be interested in a Ravenheat perhaps ? csi 85 , or a 120 silver low nox combi ??
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Oh yea, you can do it if you B&Q it, is that advert 3 years old as well
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amateur plumber ????? I don't think so ! he's probably forgotten more than alot or most know ???
sorry to upset your boyfriend
That's quite funny.....for a ******.
Brilliant
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