Hi I'm newly qualified. Why would a boiler be 23mb at the meter on working pressure and 19mb at boiler inlet pressure and 14mb burner pressure. This is fine as per the MIs but i thought there was only supposed to be a 1mb drop.
There is about 4 meters of pipework to boiler mostly in 22mm. I thought it was low. I have gas safe inspecting me so I'm trying to get my facts straight. Its a Worcester 28i RSF. The other wierd thing is the co co2 ratio is 0.0003 and the MIs say it should be 0.003-0.007. Its really low. The gas rate is perfect though.
Would it also be worth mentioning there is a 2mb drop off pressure on the installation that is apparently untraceable. Within the 4mb permissible limit with no smell of gas.
G4 meter.Yes i tried isolating the boiler and it made no difference there is a 22mm pipe that Ts off and goes underground to the cooker. I have yet to cap off either direction to find out which route is responsible for said drop in mb.
Ok that does not sound reassuring but helpful all the same. Ill wait till the gas safe guy comes and then fix it. I don't really know if he can penalise me for having a numpty gas installation prior to my qualifying.
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