Dooh !
Well lesson learnt, after a freezing night and morning on Stratford Leisure centre car park and demonstrating to the world wide web via this forum my own stupidity, I filled up the LPG and the heating works now !
In my defence we both thought we had nearly a full bottle left after Hereford and the stove and fridge still carried on working while we were at Stratford. Is the truma more sensitive to the gas being low ?
Paul.
Shout out to Stratford on avon council for providing 9 Moho bays and allowing overnighting !