I have had my valiant eco tec pro 28 for 9 years when installed I used Hep 2o the whole system is done in barrier pipe once installed I still gave it 2 hot flushes then put in 2 litres of sentinel inhibitor I also installed a magnaclean on the return,every service the magnaclean is checked very little magnetite on the magnet,the condense trap is also cleaned out it is also quite clean. If your system is installed correctly and serviced every year then it should give you years of reliability.

It has had a lot of problems - pressure always low- heating up radiators and hot water issues, timeclock issue, noisy boiler and then pipe burst in the boiler room, too many issues - right from the start it did not seem connected well to radiators and pressure was low. 2 years later it made an awful loud noise in the night around 3 in the morning I believe my tenants said and a pipe burst in the boiler room it was winter but whether the CH was on or not I do not know. Radiators were not coming on properly - 4 and 5 years later 7 years on and we wonder whether now after over 400 worth of PRV, Expansion vessel, Heat Plate exchanger being changed - what will happen next !!!!!!! Disastrous choice....................... do not buy it it is low end thing

Our boiler (eco TEC pro 28) broke down two days ago. It is new and only installed 1.5 years ago. We currently have no hot water and no heating and with two young children and elderly parents here at the weekend from aboard, the earliest time slot that Vaillant was able to come out is Monday - 3 whole days away. For a brand that is supposedly good quality, it is very disappointing to experience a breakdown so soon. Vaillant is unable to provide quick customer service nor a good quality product.

Had this boiler for four years now it is becoming a problem more and more with stuff going wrong, in comfort mode had to be turned off because it coming on when it should have not, now am getting error message's despite having a regular annual service. This boiler is VERY overrated

I have been fitting these boilers for quite a few years with very little issue, my customers are happy they look smart and are very quiet in operation. Fit them properly, flush system properly and get them serviced!

After around 20 years service, I decided it was about time I ungraded my Combi Boiler and an installer recommended a Vaillant ecoTEC Pro 28. Bad choice! I have had a few problems and, less than 3 years old, it is now constantly venting water and I have been quoted £499 for a major repair.

HAD TO REPLACE MY OLD FEROLLI BOILER WHICH HAD LASTED 12YEARS WITHOUT HARDLY A PROBLEM.HEATING ENGINEER I KNEW SUGGESTED VAILLANT ECOTECH PRO 28 WHICH WAS INSTALLED 28 MAY 2014.WITHIN 6 MONTHS LOST HEATING AND HOT WATER SUPPLY SHOWING F75 FAULT.VAILLANT SENT ENGINEER WHO REPLACED PUMP.JUST OVER A MONTH LATER FAULT CODE 75 DISPLAYED SAME PROBLEM OCCURRED.AGAIN PUMP WAS REPLACED ENGINEER TOOK WATER SAMPLE FROM SYSTEM BUT EVEN HE STATED IT LOOKED CLEAN.MONTH LATER VAILLANT SENT LETTER STATING THEY WOULD REFUSE TO CARRY OUT FURTHER REPAIRS UNTIL SYSTEM WAS FLUSHED AGAIN !! THE ENGINEER WHO INSTALLED BOILER COULDNT BELIEVE THEIR ATTITUDE AS SYSTEM WAS POWER FLUSHED BUT SAID THE BOILER WAS VERY SENSITIVE AND VAILLANT HAD SINCE REDESIGNED IT DUE TO THIS PROBLEM.I NOW HAVE A 3OO POUND BILL WHICH I AM VERY RELUCTANT TO PAY FOR POWER FLUSH.NEVER HAD THIS PROBLEM WITH MY FERROLLI BOILER CANT RECOMMEND THE VAILLANT.

The council fitted these boilers in 2009,it was great for a year then trouble it kept showing f75 had new water senor fitted but only lasted few months, this issue is getting worse have had a gas man out several times to clean the sensor out.....Would not recommend this boiler

someone told me this boiler is the best. from reading all the comments after buying villant boiler now fitted. Im not so sure. And if I had come on this site before installing something that aint even good then whats worth the value. I must hear that A boiler has its positives... ive had a full installment of radiators and a boiler,I had a very old boiler behind a gas fire for ages. Never broke down. I guess everything is made with plastic these days. Im disappointed. I just hope I dont get negative stuff from my "new" boiler.

Had this boiler along with a full central heating system fitted 3 months ago. The boiler has broken twice so far ( F.75 and S.98 fault) needs a replacement pump and sensor already. Vaillant engineer not able to come out to fix boiler for three day. This leaves my young family without heating or water until the following week. Really poor product along with a poor warranty after care service. DON'T BUY THIS Product!

This is a rubbish boiler. It has lasted less than 5 years. It cost me £3000.00 to supply and fit. It just keeps breaking down. Don't get one.

My elederly mother had this boiler fitted for free by british gas, it stops working and she has had 3 engineers out so far within the last few months... You have to keep filling the loop bit with water and it comes up fault, would,nt recommend at all

I had a vaillant eco tec pro28 fitted in january 2013. I have had 4 vaillant engineers out already. Firstly it would not warm the radiators up even after being on two and half hours. Then noticed same again. Then had new pump and pcb fitted, then noticed boiler went to sleep on heating side when the hot tap had been run even for a short period ( no heating 10mins after the tap has been run). This is not just the usual event of how a combi works by diverting the power to hot water over heating. This is a ten minute lag every time up wash your hands or anything so as you can imagine in a normal houshold the temperature drops significantly. I was told by a vaillant engineer that this is due to its energy efficiency. I asked why my house gets bloody cold with a brand new radiator and was told i needed to set it to come on an hour earlier than i already did so when the heating goes to sleep when we dare run a tap the house would be warm enough. Thats energy efficiency for you. A engineer admitted to me that there is a problem with these boilers and he was sick of having to lie to customers about them. DONT BUY ONE OF THESE. Anybody else having the same problems out there?

I had this boiler fitted in late November 2012 and it has now stopped working twice, both times with code F28/F29 and when I've rung the helpline the automated message said it is due to the low temperature and frozen water in condenser pipe and to fit a boiler boy - in other words throw more money at it.The low temperature yesterday when it stopped working was 3/4 degress - not even a minus figure!! This is obviously a known problem so it should be fixed at source and not left to the consumer to sort out once fitted. When you buy a new boiler you shouldn't be having to add extras to it, it should be in good working order.