Here is a section of an email from Bosch Worcester who I sent the installation report to . They do not seem impressed with the pipework either and do not understand the figures given by the gas installer. The contractor who saw the original fault also looked at these figures and said he could not belive them.
[FONT=ArialMT, serif]We can only state that the gas supply to the boiler should not be less than 22mm, which at some point it clearly is, as per your engineer's report..[/FONT]
[FONT=ArialMT, serif]The certificate you have attached - is this from the original installation? We would be wary of it - there are measurements on there that simply cannot be taken on your Greenstar boiler.[/FONT]
[FONT=ArialMT, serif]For example, "Burner Operating pressure" - this is listed at 8.5mbar. There is no clarification on exactly what has been tested here, but it is impossible to measure a burner pressure on a Greenstar boiler. They use something called a zero governor gas valve, which means that measuring a pressure on the burner side of the valve is impossible.[/FONT]
[FONT=ArialMT, serif]Which begs the question, what does the 8.5mbar quoted refer to? If this is the available pressure on the inlet side of the valve, it's far too low. Did BG record the standing and working gas pressures available at the gas valve inlet test point? They should have done so when the boiler was fitted. It would be worth checking through your paperwork to find this measurement.[/FONT]
[FONT=ArialMT, serif]Again we need you to confirm that the boiler in question is indeed a Greenstar 28i Junior.[/FONT]
[FONT=ArialMT, serif]Regards[/FONT]
[FONT=ArialMT, serif]Technical[/FONT]
I should Imagine the British Gas response to the pipework, wiring and gas pressure would have been rather different if one of the non British gas fitters on this forum had put in my boiler in this way! I am prepared to carryt on fighting them and will not back down but I feel sorry for old people or other vunerable people that get this kind of treatment from fitters and who then get lied to and ignored by customer services.