- Thread starter Depo
- Start date
Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
M
Masood
Which plumbers on which forums? Nobody on here has made such a strong statement. There are marginal differences between the two metals in terms of performance, longevity, efficiency, etc.
It's pretty rare for the main heat exchanger to be the part that ends boiler life. Ignore what the heat exchanger is made of, focus on the quality and reliability of the other components, as they are far more likely to fail.
You've had sterling advice so far from people with real life experience, who actually install, service and repair boilers in the field, yet you seem far keener to trust a pseudo-academic paper based on research carried out in lab conditions by a boiler manufacturer!
Hardly the most unbiased of researchers, or the most statistically rigorous study!
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M
Masood
As for the dB levels - you are seriously wasting your time even giving this any thought. As already stated, a washing machine or kettle will be much noisier.
How much time do you actually spend in your kitchen with no other appliances running? You're more likely to be in another room, shower, or watching telly, listening to music etc.
How much time do you actually spend in your kitchen with no other appliances running? You're more likely to be in another room, shower, or watching telly, listening to music etc.
That white paper doesnt say "dont buy aluminum". It provides quite in depth view on each metal and how it will affect boilers life.
Plenty of people are saying corrosion, grey goo, blocked lines.
https://www.google.co.uk/#q=stainless+steel+aluminum+heat+exchanger
Yes, aluminum does have 4.5x better thermal conductivity, but tube walls are much thicker due to fact that is not as strong as stainless steel - will crack and leak over time. On that fact, thermal cond. is equal.
Plenty of people are saying corrosion, grey goo, blocked lines.
https://www.google.co.uk/#q=stainless+steel+aluminum+heat+exchanger
Yes, aluminum does have 4.5x better thermal conductivity, but tube walls are much thicker due to fact that is not as strong as stainless steel - will crack and leak over time. On that fact, thermal cond. is equal.
House currently live in has Ideal combi. When I`m in bed upstairs I can hear it running and it drives me nuts. Noise seems to come up through pipes.
Its not about noise in kitchen, but living room & bedroom.
M
Masood
That's not the boiler, it's badly installed and possibly badly designed pipework.
M
Masood
Corrosion - can be mitigated by a through powerflush on installation and proper dosing with inhibitor chemicals.
Grey goo - dealt with during thorough servicing
Will crack and leak over time - the rest of the boiler will have shuffled off its mortal coil long before this will happen (in normal circumstances). You may be unlucky and have a heat exchanger crack due to manufacturing defect, but I have replaced more SS heat exchangers than ally ones. The thinner walls make any weakness or manufacturing stress in the metal far more critical.
Seriously, you are worrying about things that are so unlikely to happen that you're not seeing the wood for the trees. Stop sweating the petty stuff!
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When condensing boilers became the norm after 2005 Part L building regs. came into being, all the talk was of how aluminium heat exchangers wouldn't last the course & how stainless would be so much better.
In fairness I have not heard of any prematurely failed heat exchangers, ally or S/S so probably all just mythical nonsense, just like the year 2K bug !
In fairness I have not heard of any prematurely failed heat exchangers, ally or S/S so probably all just mythical nonsense, just like the year 2K bug !
Obviously You have got some knowledge or information from somewhere. What your desire and opinion suggest is that its not the norm. You can have exactly what you want flow, temp rise, duty etc. The only factor which limits this is how much you are prepared to spend
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Ring Biasi, Ferroli or any other quality manufacturers and ask for their sales dept
They will be happy to answer any query you may have, in fact I'd go as far as to say they will be delighted to actually speak to a real person who wants to know more about their products
You may be even more luckier and get a good discount over the phone from them
They will be happy to answer any query you may have, in fact I'd go as far as to say they will be delighted to actually speak to a real person who wants to know more about their products
You may be even more luckier and get a good discount over the phone from them
- May 23, 2015
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ooo missed a few posts, surves me right for sleep in 😀 and worcester/ others have a 10 year warranty on heat exchangers 😀
Hold your breath just had an email that Vaillant are bringing out a new boiler expected to be called underfloor tec and the energy consumption Is unreal they've also developed a new way of fans operating and are almost silent watch this space.
D
Dotty
Is that the one where they insist on you using Dihydrogen Monoxide as the heating medium?
Yep it is I wasn't going to say but you've let the cat out the bag now! The way it fractionally distalisees dihydrogen monoxide and sells the unused products back to the energy supplier turning a profit for the user is unreal! Heating and ho****er and they pay you an average of £648 a year is mind boggling. I just can't believe it will only produce a max of 23db doing all of that I have one pre order.
L
lame plumber
I am waiting for Williams to launch the Intergas rapide, that he mentioned in his thread a minute back, I'll be popping one in for an old customer as soon as they appear, think they use the stuff croppie mentioned.
M
Masood
Lucky sod! I hassled my rep to get me on the pre-order list but he said they had none left. 🙁
W
Whyme
Dihydrogen monoxide defiantly is the way forward, incorporate the new ceramic heat exchanger being developed and i reckon boilers will easily push the A+++ on that new ERP thing in September.
We have to do the 7 day CPD course to work on theses though, and Yeh they are all ERP pumps ,,,, also worth mentioning you can use WIFI to adjust the Dihydrogen output, just means we need the new combustion analysers that incorporate the Dihydrogen sensor, I do hope they have a 5 year life span,
- May 23, 2015
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does that mean if you have an i phone no more stupid little button clocks/timers to set ? you can just dl the app and set your times like a nest or wave
This is really informative. Glad we can talk about these new concepts. Hopefully it helps the OP
R
Ray Stafford
Call me grumpy and old fashioned, but I think everyone is jumping on this band-wagon without thought for the consequences.
Its not a new technology, and the potential dangers of Di-Hi have been documented for years, even outside of the trade. W C Fields wrote a particularly pithy piece on the subject.
Its not a new technology, and the potential dangers of Di-Hi have been documented for years, even outside of the trade. W C Fields wrote a particularly pithy piece on the subject.
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Morning grumpy, I still prefer calling you the evil shopkeeper cos your a tease with your freebies lol.
D
Dotty
The next time I'm over I'll take you to the pub so you can buy us a few single malts each.
I'll explain how DiHi can be utilised without worry or harm to the environment or bricks and mortar.
There is a bit of a fine balance in getting the volume correct but you'll thank me for the knowledge afterwards.
If you post it in The Plumbers Arms I`ll buy you a virtual single malt mate, this is all new tech to me and I wanna know more about it.
Awkright, the late great Ronnie Barker. Little known fact is that he used to send in script ideas under a false name to be sure that they were used under merit alone and not just because he wrote them.
You mean there's plumbers on here without a degree :0 I'm shocked... They should be removed from the site or something 😉
R
Ray Stafford
I'm afraid I was already grown up by then. When I was growing up, Ronnie Barker was in prison, doing Porridge.
M
Masood
Reminds me more of Aunty Wainwright from Last of the Summer Wine. Nobody escapes without buying something they never knew they needed! 😀
This is insane, you are asking for the boiler that not only ticks all the boxes, but gets an a* in every box. This just doesn't exist. Same with cars, you can't have performance and efficiency. Yes there is a Tesla but you suffer from low range and lack of dealers for repairs.
Your spreadsheet lays out just a few of the features, what about warranty?, what about spare part costs? What if it doesn't fit a standard cupboard and you need to pay more for a bespoke cupboard.
Also your installer will know his preferred boilers and be comfortable with them, anything else will naturally take a bit longer
You could spend a year on this project and finally save £6.50 per annum only to realise that the money you have spent on powering up your laptop screen probably outweighs it.
Go with what your installer recommends, start shopping and Aldi and feel the savings. Everyone one is a winner then
Your spreadsheet lays out just a few of the features, what about warranty?, what about spare part costs? What if it doesn't fit a standard cupboard and you need to pay more for a bespoke cupboard.
Also your installer will know his preferred boilers and be comfortable with them, anything else will naturally take a bit longer
You could spend a year on this project and finally save £6.50 per annum only to realise that the money you have spent on powering up your laptop screen probably outweighs it.
Go with what your installer recommends, start shopping and Aldi and feel the savings. Everyone one is a winner then
- May 23, 2015
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M
Masood
You some kind of pervert? Or a glutton for punishment. You'd spend more time placating the plank than working.
R
Rickster123
D
Dotty
Are you kidding? You heard the ID and FD fans going full throttle?
And it'd never fit in a kitchen cupboard. Hot press maybe......
And it'd never fit in a kitchen cupboard. Hot press maybe......
R
Rickster123
Oh I'll agree it's totally unsuitable but I think they smell lovely when they're running.
D
Dotty
M
Masood
I'd do it on a day rate, let him make every decision and do it exactly to his spec and instructions...
M
Masood
Oh, he'd have to source it! I could sell him some dihydrogen monoxide though. A bargain at £37.85/litre.
E
Ermintrude
Get a V200 combo. Ufh will be excellent if you use the seperation kit and blending valve. Ufh is not like rads. It requires hydraulic separation and the return from floor to be blended with flow from boiler. The max floor water temp should be 43c
Your water flow rates has little to do with boiler and a lot to do with supply.
Fit a 5000l tank a BCWS at 6 bar and have a balanced cold at 3 bar. Will work perfectly but cost you £££££ V100 is a bit of a budget boiler . Get the 200 with weather comp.
Your water flow rates has little to do with boiler and a lot to do with supply.
Fit a 5000l tank a BCWS at 6 bar and have a balanced cold at 3 bar. Will work perfectly but cost you £££££ V100 is a bit of a budget boiler . Get the 200 with weather comp.
E
Ermintrude
The problem with aluminium is pH. You cannot sustain the passive coating on aluminium and steel very easily as there is a window of about 0.7 where both will co exist happily.
But that's chemistry.
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E
Ermintrude
D
Dotty
- Jun 28, 2007
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Don't mind me while I reply to a few of the threads. We need the new thread pages to be picked up correctly. If this thread isn't current, just visit the plumbing forum and post your own new thread or checkout the other existing threads.
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