Bubbling hot water going to header tank

[Merlin1]

Hi,

I am looking for a bit of advice. Our Gledhill hot water tank was installed incorrectly 18 months ago and has been sending bubbling hot water to our plastic header tank in the loft every time we turned the heating on. We first noticed an issue with a leak in our bedroom ceiling which we linked to a leak to the seal from a pipe at our header tank. The company that installed the tank have been back and rectified the error by re-plumbing the tank (changed the pipe work). As you can imagine we now have a live complaint with the installation company. My questions are:

How significant an error is this?
How dangerous was it to be sending hot water (it was literally bubbling) to our heading tank (potential that the tank could breach)?
The hot water would obviously cool down after the heating is turned off, leaving a warm supply sitting in our header tank. Is there any legionnaires risk?
Our central heating system is now working much better than ever before, the radiators are much hotter. Could the fact that the system was pulling hot water up to the header tank at the same time as trying to send hot water to our radiators have impacted on the effectiveness of our central heating system?

At the moment it feels like the installation company are trying to brush us off so any help that can be offered would be much appreciated

Thankyou

 

[Activate Trade Training]

Hot water in a plastic tank risks structural failure and potential leaks, which you've already experienced. The incorrect installation likely reduced heating efficiency by diverting hot water away from radiators. The risk of Legionnaires' disease, while thankfully typically low in domestic/residential settings, increases with stagnant warm water. We'd advise you to ensure your system is checked for residual issues and water quality. For peace of mind and system longevity, maybe consider an independent inspection to assess any ongoing risks or damage caused by that initial error. Hope this helps you out a bit more - and good luck with your dealings with the installers.

 

[Merlin1]

Hot water in a plastic tank risks structural failure and potential leaks, which you've already experienced. The incorrect installation likely reduced heating efficiency by diverting hot water away from radiators. The risk of Legionnaires' disease, while thankfully typically low in domestic/residential settings, increases with stagnant warm water. We'd advise you to ensure your system is checked for residual issues and water quality. For peace of mind and system longevity, maybe consider an independent inspection to assess any ongoing risks or damage caused by that initial error. Hope this helps you out a bit more - and good luck with your dealings with the installers.

Thank you