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Nov 14, 2021
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Dorset
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Hi,
The gas engineer installed my house radiators in August, all are new ones. But there was a leak on one of them on 26th of October, he came and drained all the system, and fixed the the leak.
But he did NOT add inhibitor.
I was just told that once drained the system, it has to add inhibitor otherwise it will cause a lot of issues! Such as:
  • Damage to the boiler
  • Damage to the radiators, such as leaks
  • Blocked pipes
  • Damage to the boiler’s heat exchanger, affecting the boiler’s ability to supply hot water for the taps
  • Radiators taking a long time to heat up, or don’t get hot in certain places.
Is this the case? I am so worried now..

Please advise , is this the case that once drained the system, it has to add inhibitor?
 
Boiler is designed to work quite happily without inhibitor, however the inhibitor does improve properties of water to prevent sludge, rust and increase its thermal efficiency so seen as a worthwhile thing to add to keep your system in good condition.
 
You are worrying too much. Some advocate no inhibitor, many don’t have it for similar reasons to yours. If you are concerned, drain and refill with a dose of inhibitor.
My concern is, after drained the system, the gas engineer did not add inhibitor. I learned that it is a must to add inhibitor once drained the system.
 
I'd be posting on the gas forum if I were the OP. "New boiler installed this August. No certification!?"
I meant, there's no Gas Boiler System Commission Checklist, but I did receive an email for Certificate of Registration from boiler brand Bosh----is this Certificate of Registration you meant for certification?
 
I meant, there's no Gas Boiler System Commission Checklist, but I did receive an email for Certificate of Registration from boiler brand Bosh----is this Certificate of Registration you meant for certification?
My understanding is there should be a document other than manufacturer registration. That said, as I don't install boilers myself and I'm stuck abroad, rules may have changed without my knowing it. In fairness it does seem odd that an installer could register an installation with Bosch and not have at least pretended to have worked to the Benchmark code of practice, but I'm not sure which is why I suggested posting the specific question on the gas forum.
 
My understanding is there should be a document other than manufacturer registration. That said, as I don't install boilers myself and I'm stuck abroad, rules may have changed without my knowing it. In fairness it does seem odd that an installer could register an installation with Bosch and not have at least pretended to have worked to the Benchmark code of practice, but I'm not sure which is why I suggested posting the specific question on the gas forum.
Thank you for your query and doubt!

I went specially to find the Gas Certificate I have and checked online, it is indeed the boiler installation certificate.
But on the certificate it does not say any specific thing like boiler installation certificate, even not mention boiler or any work done. So I had thought it was my gas hob installation which the installer told me to get the certificate for me. The gas hob and boiler installed at similar time.

Now, after I checked online, I found I have NO gas hob installation certificate!

Thank you again for doubting the certificate which made me find out what I actually have!
 
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