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It’s all detailed in the previous posts mate. I would never bad mouth Vaillant’s. They are all I fit normally.Don't talk dirty about our beloved vaillants.
What's wrong with it?
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It’s all detailed in the previous posts mate. I would never bad mouth Vaillant’s. They are all I fit normally.Don't talk dirty about our beloved vaillants.
What's wrong with it?
That’s correct I may misunderstood you scott. Yes it would be equivalent to a conventional tank of 70lDo you mean with a blending valve it’s the equivalent of a conventional tank?
It won’t run empty but once the 20 litres is used it just works as an 838 then reheats the cylinder when it gets chance
Am I missing something here?That’s correct I may misunderstood you scott. Yes it would be equivalent to a conventional tank of 70l
Lol.Am I missing something here?
You just add 55 litres of coldThe store on a 938 is 15ltrs. How will that be like a 70ltr tank?
I am just putting this out there before I completely get confused.
The storage on a 938 is 7.5 ltrs a vessel, so 15ltrs total, producing upto 20ltrs/m. Once the vessel is cold it switches to a combi @ approx 16ltrs/m.
Those 15mm pipes will only carry 22000-25000 Btu's comfortably in my experience. At a push you may get 30000 but you will be lucky. It will present problems and noise is one of them.The next thing is the central heating pipes from the boiler are starting in 22mm but after 2 m it reduces to 15mm
What outputs?15mm.at the moment they only have downstairs rads and one added upstairs bathroom
What kind? P1, P+, K1 or K2?( most of them are large 1400x600 )
Yeah I did a mistake in terms of saying it would not run empty obviously it does that’s the writing mistake I made.Am I missing something here?
Mate, just have read online... it’s german I know but I don’t know how else I can explain that. It’s clearly written that’s equivalent to a 70liters cylinderThe store on a 938 is 15ltrs. How will that be like a 70ltr tank?
You also said the store was 20 ltrs mate. Anyway it doesn’t matter I still wouldn’t fit one.Yeah I did a mistake in terms of saying it would not run empty obviously it does that’s the writing mistake I made.
It’s fine, I made a mistake which means I am not flawless. However attached I will show you what you could perhaps translate. Perhaps it makes sense to you. I don’t want to argue just stating the fact which is dated by me but by Vaillant itself.You also said the store was 20 ltrs mate. Anyway it doesn’t matter I still wouldn’t fit one.
I understand Ron but that is Germany and this is England and if I’m honest I don’t care about Germany. I do not live or work in Germany. I live and work in England where our regs and boiler spec are different and as far as Vaillant have told me the stores on an 937 are 7.5ltrs each and once cold all you have left is an 837 combi boiler.It’s fine, I made a mistake which means I am not flawless. However attached I will show you what you could perhaps translate. Perhaps it makes sense to you. I don’t want to argue just stating the fact which is dated by me but by Vaillant itself.
View attachment 36832
That’s fine, I appreciate your opinion. You can trust me that this boiler as well as the green IQ, ecotec plus 825 are equivalent to german boilers. I do understand what you’re saying and agree that is slightly different in terms water pressure etc. Perhaps that would make a huge different in many cases. If I am honest I would fit an ecovit or ecoCOMPACT but unfortunately it doesn’t exist here in uk. Done take me in the wrong way mateI understand Ron but that is Germany and this is England and if I’m honest I don’t care about Germany. I do not live or work in Germany. I live and work in England where our regs and boiler spec are different and as far as Vaillant have told me the stores on an 937 are 7.5ltrs each and once cold all you have left is an 837 combi boiler.
I haven’t mate. I just go off what Vaillant tell me thats all.That’s fine, I appreciate your opinion. You can trust me that this boiler as well as the green IQ, ecotec plus 825 are equivalent to german boilers. I do understand what you’re saying and agree that is slightly different in terms water pressure etc. Perhaps that would make a huge different in many cases. If I am honest I would fit an ecovit or ecoCOMPACT but unfortunately it doesn’t exist here in uk. Done take me in the wrong way mate
More to the point mate. You shouldn’t be using German boiler data to fit boilers in England anyway. One has nothing to do with the other.That’s fine, I appreciate your opinion. You can trust me that this boiler as well as the green IQ, ecotec plus 825 are equivalent to german boilers. I do understand what you’re saying and agree that is slightly different in terms water pressure etc. Perhaps that would make a huge different in many cases. If I am honest I would fit an ecovit or ecoCOMPACT but unfortunately it doesn’t exist here in uk. Done take me in the wrong way mate
You KOP, you advise in the same way as I do but customer apparently spent his whole money for the house and has to safe up for a new refurbishment. I just told him yesterday that he needs upgrading all radiators as this boiler is in there for 50 years. Upstairs there is no central heating at all it’s kind of old gas fires for each room but they are installed in the wall never seen something like this before. Furthermore the central heating supply downstairs which has about 5 big radiators including the added one upstairs in the bathroom have all 15mm supply. From the boiler it goes in 22mm for about 1.5m the rest all in 15mm. He even wanted me to fit more radiator los upstairs but it will not work without me installing a new supply in 22mm. All windows are either 1.5 or 2m long and require a minimum of double panel due to the high ceilings and room sizes. I did tell him that about the pipes being too dirty for a new boiler and a flush would not help to get rid of all.Not my boiler of choice for that job Ron you need to be ripping out all that pipework there will be so much magnatite in there it will wreck the valliant even if you fit a mag filter, and I would at least get the rads off and flush them through outside if possible ideally replace them to and all the valves you do seem to get em bud. Good luck with it kop
It’s equivalent so there is no difference in data. But that’s ok I do not want to keep arguing with you.More to the point mate. You shouldn’t be using German boiler data to fit boilers in England anyway. One has nothing to do with the other.
If the German 938 has a 20 Ltr store then it is not equivalent! You just need to admit that the uk version has a 15 ltr store and I will leave you alone mate.It’s equivalent so there is no difference in data. But that’s ok I do not want to keep arguing with you.
I will get back to you shortly. I agree I have read your reply but due to my research I did not reply as i want to avoid MISINFORMING people. I will get to the bottom of it. If I am wrong I will apologise but I really doubt that these 2 boilers are not identical!@Matchless.plumb as I know you have seen my message but not replied. I am just going to leave this picture here. Please stop misinforming customers by using data that is not of any relevance in the uk. Start using the correct Vaillant data book. If you do not have one call the rep they will send you one.
View attachment 36834
You buy those boiler in separate packs right? Where does the cylinder come from, Remscheid- Germany ? Or Kent ?Research away mate. They may look identical and sound identical. But uk rules are much more lax than in Germany and that is probably why they are different.
Wolseley or city PlumbingYou buy those boiler in separate packs right? Where does the cylinder come from, Remscheid- Germany ? Or Kent ?
Alright, but they come in separate boxes?Wolseley or city Plumbing
Yes mate. But doesn’t change the fact that they are 7.5ltrs each in the ukAlright, but they come in separate boxes?
It makes a huge difference if your supplier gets them from Remscheid as these are 20liter storage and not 15. 3 months ago I installed a few which came from Remscheid and it has 20liters not 15.Yes mate. But doesn’t change the fact that they are 7.5ltrs each in the uk
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