Then gave it some thought. The bungalow was built in 1968 so if the heating system had been put in when built it would be imperial pipework. A quick measure and yes, imperial. Drove over to the nearest plumbers merchants (18 miles each way) and got 2 imperial to metric connectors. Cleared all the insultation out of the way and lit the blow torch. I has a long cylinder of gas on it and needed to be tilted at quite an angle to get some heat on the first connector. It was virtually laying flat and not burning correctly, needed a short cylinder. Time was now 17:40 and the shops near me close at 17:30.
Wonder what will happen tomorrow.
"Don't think of them as problems, think of them as opportunities."
"OK, I think I've hit an insurmountable opportunity!"