Success

Of sorts... The lovely gasman came again today and installed a swanky new boiler which looks exactly like the old one only smaller

Sadly it needs another part which has been ordered, he will come back on Friday to finish it off. In the meantime, I have emergency hot water if I understood him correctly I can turn it on for up to ten minutes then turn it off so a quick shower this evening and again in the morning. Fingers crossed Blip Buddies.