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Did he do the ch in plastic ?
Discuss Installer installed undersized radiators in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Did he do the ch in plastic ?
Just another thing I am sure your installer is not a member of this forum !
No, I've worked it out and the upstairs are also undersized.
As I said, the installer did no assessments beforehand so no such thing as a heat loss calculation..
How many hotels did you get? Surely 2600 for a full system was considerably lower than most? Were you not concerned at that point?
I am sure none of the regular plumbers will charge £2.6 to putt full ch system !
How many hotels did you get? Surely 2600 for a full system was considerably lower than most? Were you not concerned at that point?
Maybe not regular but...
Your ipad playing up again? It was very competitive though it wasn't the cheapest and it wasn't that far out from the average and he had a lot of good feedback from one of them tradesman website things so I wasn't overly concerned.
He is now saying that upstairs are not undersized and should provide you with heat loss calculations to do this. Ironically the heat loss calcs you say you have done you mentioned using the inner temp as 10 degrees, the calc should be based on the ideal temp as opposed to actual temp. So if you have done it the way you have indicated the size you worked out could also be undersized and yet your calculations still tell you you need larger rads than provided.
You should tell all the people you know never ever to use plumbers from them trusted web sites ......
Haha no that was the red wine! Sorry! Far to cheap for a quality install in my opinion. That said there is no excuse for poor quality workmanship. Hope you get it sorted.
Get someone else to sort the work out, post the job on here.
I think you will have to move on from the problem the installer has given you.
how can you not measure a room and be able to fit a radiator?
by the time you get a independent opinion, go through a solicitor where is it going to go and at what cost, both money and stress.
For you guys that do it, how much would you roughly charge to change from a single to a double (same size) labour only?
Also, where is the best place to buy (non trade only) cheap rads?
I will give you another tip don't try and save money on rads and buy em from screwfix or b&q because you won't save, gonna cost even more in the long run
Living room: 3.4m x 3.7m x 2.7m Rad installed: 1000mm x 600mm single BTU 3238
Bedroom 1: 3.5 x 3.4 x 2.6 Rad installed: 900mm x 450mm single BTU 2262
Bedroom 2: 3.77 x 2.5 x 2.65 Rad installed: 700mm x 450mm BTU 2007
Living room 7000 btu
bed 1 6000 btu
bed 2 5000 btu
without calculating walls/ windows/ insulation etc.
where are you based?
I will give you another tip don't try and save money on rads and buy em from screwfix or b&q because you won't save, gonna cost even more in the long run
If you want to get the rads your self I am sure your buddy will fit them for you !
If you want a profesional do as Steve b say list your location and you will hear from a profesional plumber who will come an survey job for you !
For the first time in his life...he went for the B&B option then changed his mind and camped
@Chris: You put a like on this comment? Oversizing allows you to lower the flow temperature and therefore minimising heat losses and maximising the gains from the latent heat.Over sizing radiators can also be just as bad as under sizing as it will affect efficiency and correct temp returns of these new condensing boilers
@Chris: You put a like on this comment? Oversizing allows you to lower the flow temperature and therefore minimising heat losses and maximising the gains from the latent heat.
Could someone explain to me the negative effects to expect (except customer spending more on the radiators)? As long as the oversizing is done equally I could not see negative effects at all.
It's all about energy efficiency at the boiler so it will condense efficiently and use less gas or use it better thus saving the planet . the flow and returns at the boiler must only have 20ºc temp difference so if the rads are too big for the boiler then the return to the boiler will be too cold and then the boiler won't condense . Which means you might as well not fit condensing boiler, as stated building regs can now make you rip it all out if they get involved. I'm not the best explainer so hope this is good enough. If you've done level3 about modern system design this should have been taught at that stage.
Reply to Installer installed undersized radiators in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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