8 years ago, we had a brand new Viessmann Vitodens 100-W system boiler for our central heating only. It went wrong within days and we had the plumber back fixing it 4-5 times over the first couple of months of having been in. After that, we had the plumber round at least twice a year, often more, with various faults and it never managed to heat the house properly even when working as it should. Eventually, we got tired of having such a useless boiler and had a new Vitodens 200-W system boiler installed just over a year ago. Not the combi, the commercial grade system boiler, only to run the central heating. Hot water has always been provided by the Aga (which has been working faultlessly throughout). I wish I had insisted on a different brand after years of suffering the 100-W. The new boiler started flashing a fault after less than 2 months. Bearing in mind it had been installed in the middle of the summer, this was its first actual use. It was fine on the first couple of days, but then came up with a fault. We had the plumber back more often than having hot meals with yet more fault codes flashing and the boiler not working. It spent most of the lockdown flashing fault codes, even through the summer. It hasn't worked for more than half an hour at a time for nearly 8 months. Bearing in mind it's only about 15 months old, that's pretty useless. I'm never ever having another Viessmann product for as long as I live. First one was bad enough and needed scrapping after just 7 years and the new one is even worse.
5 months ago
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Viessmann Limited has a 4.49 average rating from 735 reviews

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