Yes i am gas safe registered,
it just so happens that i installed a combi in the house next door without a problem, so being in a rush as this needed to be done quickly i did not measure thinking there should not be much difference between two houses either side of a drive way.
turns out...
I have recently fitted a boiler for a customer.
Having previously checked all the pressures and flow rates in the house i went ahead and ripped out their old tanks and fitted a combi.
Now when they flush a toilet or have the washing machine running water stops at the taps, i measured the...