Home > categories > Machinery & Equipment > Boilers > Unsafe boiler due to condensor outlet?
Question:

Unsafe boiler due to condensor outlet?

I have a Heatline Vizo condensing boiler, and after several problems with the hot water, I called out British Gas - no fix no fee! Shortly after the chap arrived, he informed me that the condensation outlet was unsafe and disconnected the boiler totally, saying it would need fixing before he can do anything else as its currently potentially lethal. From the back of the boiler there is a built in 21.5mm condensation hose. This dropped into a 32mm standard plastic pipe and fed directly outside to the drains. I was informed the condensation outlet could potentially contain both sulphuric acid and if the boiler operates in 'non-condensing mode' for any reason, carbon monoxide as it acts as a flue. I was informed the boiler outlet must feed into a solvent weld reducer / coupler, and then solvent weld piping exiting the building. Is this true or have I been misled. The boiler manual states the condensation outlet should feed into the household drainage but BG said this was 'unclear'!! Thx

Answer:

No fix, no fee - so he broke it so you have to pay to get it fixed. Sounds like a shoddy way to run a business. I would be calling another repairman or two and get the truth.
Which pipe is bursting? Central heating pipe, or cold mains pipe? I find it very hard to believe that a central heating pipe is bursting under pressure. The central heating system should be pressurised to 1-1.5bar when cold. With an increase in heat comes an increase in pressure so the pressure gauge will rise to 2 - 2.5 bar when the heating is on. This is definitely not enough pressure to burst pipes. If the pressure should rise above 2.5 bar then there is a pressure relief valve (PRV) which will open at around 3 bar and discharge the heating water to relieve pressure. If the cold mains pipe is bursting then the simple answer is to install a pressure reducing valve. This can be set to whatever pressure is deemed suitable and will definitely stop pipes bursting. Although your cold water pressure would be HUGE to be anywhere near 10 bar.
Hi There, Funny I just had a phone call from my tenant saying the hot water in the bathroom isn't working. Shower fine, sink fine, kitchen great piping hot! Bath hot tap cold. Plumber came and fiddled with the boiler. (Couldn't access the tap as some prat had installed it and not left a panel on bath side to gain access) Ho hum. Anyway, he has blamed the boiler guess what make it is A Vizo Combination boiler . This flat is a new conversion so everything is brand new including boiler. So could it be faulty. Judging from your mail. Yes, is the answer. Visos appear to be the cheapest boilers on market hence they can be purchased I believe from BnQ so Im not surprised. Fortunately I am under 1 years warranty. Tell me,How was the boiler in your place affecting the hot water. was it all outlets or just some like mine? By the way my advise to you would be to get round a corgi reg boiler man/plumber who also does landlord safety checks and see if he would pass it.

Share to: