Just an update to the fire, disconnected the pipes, a boat neighbour helped me out and we let out the water from the radiator and then just let the back boiler steam out, ive had a great cosy wkend the fire was amazing and so cosy, the problem had been there was no pump fitted to the expansion tank and left to rely on gravity to circulate the heated water, it would never have been safe, anyhow now its great, happy thats sorted out
Now for the next jobs.....