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- 6 Nov 2019
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Hi all.
OK, I know you get this a lot and I apologise. I've read a lot of posts regarding the 'best' boiler and I'm not asking for that, only some advice on who to believe and your own boiler preference.
The situation:
A three storey town house. Gas enters at ground floor front door, rises to boiler which is in an airing cupboard on outside wall on top floor bedroom (not the attic) and my estimate of rough length of pipe is ~8-12m. 20l p/m flow, 4 bar pressure (tested 18-10-19). Gas pipe is currently 22mm from meter. I estimate 7-8 90-degree turns from the meter.
The current boiler is a Potterton Powermax HE 85, now got the dreaded E.42 error having been repaired once.
Three bedrooms, 1 bath, additional shower en-suite. Unlikely lots of hot water to be used all at once but possible. More important not to run out halfway through a shower!
My quandary:
1) I have had various advice from various engineers quoting for the job. Some say no gas pipe upgrade needed if keeping under 35Kw, some say they can upgrade just the meter or so around the gas meter, others say a new pipe is needed all the way up to the boiler. I realise you cannot say for certain without seeing the situation yourselves but what do I believe?
2) Been quoted for Ideal, Vaillant, Worcester, Viessmann, Intergas. All between 32-40Kw, except the Viessmann 111-W which has a tank and he is suggesting the 26Kw without gas pipe upgrade, although this would seem underpowered to me once the 46L tank is empty?
My questions:
1) What is the general advice by your good selves considering I have a conflicting range of advice by professional engineers?
2) Which of the above boilers is worth considering for reliability and longevity?
Thanks in advance for any advice.
A
OK, I know you get this a lot and I apologise. I've read a lot of posts regarding the 'best' boiler and I'm not asking for that, only some advice on who to believe and your own boiler preference.
The situation:
A three storey town house. Gas enters at ground floor front door, rises to boiler which is in an airing cupboard on outside wall on top floor bedroom (not the attic) and my estimate of rough length of pipe is ~8-12m. 20l p/m flow, 4 bar pressure (tested 18-10-19). Gas pipe is currently 22mm from meter. I estimate 7-8 90-degree turns from the meter.
The current boiler is a Potterton Powermax HE 85, now got the dreaded E.42 error having been repaired once.
Three bedrooms, 1 bath, additional shower en-suite. Unlikely lots of hot water to be used all at once but possible. More important not to run out halfway through a shower!
My quandary:
1) I have had various advice from various engineers quoting for the job. Some say no gas pipe upgrade needed if keeping under 35Kw, some say they can upgrade just the meter or so around the gas meter, others say a new pipe is needed all the way up to the boiler. I realise you cannot say for certain without seeing the situation yourselves but what do I believe?
2) Been quoted for Ideal, Vaillant, Worcester, Viessmann, Intergas. All between 32-40Kw, except the Viessmann 111-W which has a tank and he is suggesting the 26Kw without gas pipe upgrade, although this would seem underpowered to me once the 46L tank is empty?
My questions:
1) What is the general advice by your good selves considering I have a conflicting range of advice by professional engineers?
2) Which of the above boilers is worth considering for reliability and longevity?
Thanks in advance for any advice.
A
