I think it is unvented, yes - they have given me a quote to to the following work 're-pipe airing cupboard to include and auto air vent and to replace teh 2 port valve for a spring return type'. They had a devil of a job refilling the system with water after it had be drained due to the fact...
The pressure drop happened very suddenly. The heating had been fine for over 2 years, then one day, I noticed a gurgling in the rads, so bled them, repressurised and then within a 24 hour period, pressure was at zero. No visible water was coming out of the overflow pipe - or anywhere else for...
Brilliant - I will ask them to do that when they come out. I will let you know what happens but it may not be for a week or so as BG are liaising with Munters so that they can come at the same time - and I have no idea when that will be. Many thanks x
At the moment, the way that it's been left is that the leak detection specialists are coming back WITH BG engineers so that they can go through everything again and carry out another gas tracer test. If that doesn't work, I'm going to have to have the system re-piped as a next step - and even...
I am pretty positive that this has been done. I have to say that although nothing has been solved, the BG engineers have all tried really hard to get to the bottom of the problem. Also, I don't think they would have referred me on to other companies (Dynorod and Munters) unless they had...
on my paperwork, it says 'heat exchanger', and it was replaced on the recommendation of Polygon who found hot water running down the condensate pipe with their thermal imaging camera.