Hi Everone, Thanks for replies, I,m no stranger to this site, hence my questions.Firtsly, I didn,t call the Engineer, the Installer did, he is Veissmans RGI, my mate is their Area sales manager/ex worcester/veismann engineer.I had a straight boiler swap because a certain breakdown company came out to change a heat exchange diaphragm, and 4 hours later boiler was kaput.main heat exchanger blown/electrics flooded, left with no boiler.Got Veissman RGI to do a flush and straight swap using original 22mm pipe which on old Vokera reduced again to 15mm, last 2 metres,,which he upgraded to 22mm.total pipe run from meterto boiler approx 20 metres, 2 bends.Did the job , Made,a superb job, new wireless roomstat, fine.old boiler was 24kw new one 30kw, he had it at hand for another job so that was to my benefit.no long wait.He,s been in the trade all his life and family too, good reccommendations.Only teething troubles with new wireles roomstat caused all the bother, it wasn,t shutting boiler down at night.After 3 visits, rgi decided to get Engineer in to check boiler, who did and gave me 2 sets of results.one for me with 18.5mb and 3 for Veissman stating 19.9mb.on mine he said 22kw max and said 28mm pipe reccommended, on Veissmans, fitted new Electrode.I know the reason for electrode, to save RGI £60 callout charge,Fair enough.water temp 40+ and said it should be 50+, sorted roomstat and off he went.all ok now, except the AIWP difference ;;and do I really require 28mm pipe? Do condensing boilers require larger pipes than my old combi to be efficient.? £2130 I paid for the job, no complaints, but this has left me rather bemused,RGI took working readings and said all was fine, no need to go 28mm.Engineer differs,WHY? Sorry it,s a saga,I thought Veissman were the bees knees?I,m in no different state than my old boiler, but £2130 lighter, and not getting best use of the new one. Should I pay £X and upgrade pipework, or stay put? I really don,t think RGI want,s to do it;;;Thanks again all.
Hi Tony, if I can I will post them,if you tell me how.What if the second reading is the right one<18.5mb, should it still work correct, and working correct, does it mean I should get 30kw,not 22 as he stated?cheers .I,ll try and post his sheets,
Hi Mickyg, doesn,t boiler size come into the equation?
any hints on posting copy?[/img]
Hi MickyG, thanks for reply,and Tony, much appreciated.The Engineer had the hot tap on full whilst running boiler.He checked the meter pressure and even boasted how he could do all his conversions using a mobile phone,he then checked it at boiler using flexi pipe, rubber, at top front of boiler.I do not know where he had the 2 knobs, max or not, but it ran for a while.He then checked hot water temp at tap using a thermometer, the RGI used that and a type of cup with outlets, I presume that measured flow rate? I did mention a possible pipe upgrade before he started the job, as, another RGI,who quoted the job months prior whilst doing another job for me said he would upgrade the pipe to 28mm if he fitted a 30kw worcester, which was my first choice when considering a change.The reason I opted for a veissman was hobsons choice.He was reccomended by my neighbour, a builder who has used him, and my neighbour was time servered gas fitter.This RGI only did Veissman, now, and had it ready for a job, which really suited me grand, and could do it immediatly, because my neighbour related my dillemma to him.I am absolutely happy with his work, it,s superb, I asked and got a 30kw boiler, and having researched on here, new veissman had a good reputation.I didn,t even haggle with the price, I needed a new boiler asap.I,m happy with it, but as an ex engineer, cannot understand how the RGI said the boiler was fine, getting approx 18.8mb and 45 hot waterat boiler, and 20mb at meter, a drop of 1.2, well within Veissmans regs., never mentioned kw, so I assumed 30kw was what I was getting.However, the Engineer, as you can see by his log, says different, even 18.5 and 19.9, it cannot be both.As the boiler was not working, obviously, he couldn,t measure readings till new one was installed, so couldn,t advise pipe size, would see what readings were when fitted, and 15mm pipe removed.I can cope with the boiler as it stands, because, I must be getting the same as my old one which I was very happy with. but I did expect a better and hotter hot water than old one, as it is 30kw, against 24kw.Temp knob on boiler has to be on max for shower and bath. As Tony claims,the pipe run would warrant 28mm because of the length, and don,t mind doing and paying for it if required.That,s the NUB.IS IT REQUIRED?? What benefit to me would I get by spending several hundred pounds more.The RGI hasn,t come back to me, so I presume he doesn,t want, or think I need to upgrade the pipe.Advice would be most grateful.Cheers, sorry it,s so long.
Hi MM,Thanks for your reply.Since my post above, I have received a visit from my RGI,and The sales Manager from Veissman, who happens to be a personal friend, time served gas engineer, knows what he,s talking about.He did a thourough check of installation,pressures, cold water temp, hot water temp @ 12 litres pm, and got 43.5c, well within the manufacturers parameters.The boiler is working fine, not nescessary to upgrage the pipework, exactly as RGI stated at time of instalation, and asimilates to what you have just quoted.The Engineer who stated pipework needed upgrading, I,m afraid is in for a balling out.1, He gave me his personal card, both RGI and Manager wanted to know why? I presumed it was ID, alas, there is more to it than meets the eye.He shouldn,t have, my only contact should be through RGI or Veissman.he was here 15 mins, they were here an hour.The reason the RGI called the Engineer was because the boiler shut down 3 times @86.2c,thermal cut out,with no fault sign showing.He didn,t/couldn,t explain why, but neither could the others.The only reason I can deduce from all this is that the first Engineer was trying to get HIMSELF to upgrade the pipework unnescessarily, bypassing the original RGI.Apparently it seems it,s not the first time this Engineer has come under scrutiny.It,s certainly upset both the RGI and the Manager, as it,s casting doubts on RGI workmanship, which the Manager Et Al said was second to none before I hired him.I didn,t just get him from yellow pages,I contacted friends who had used him.All,s well that end well.I thank all for their input, specially Tony again.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
