HI I have a what i think is a cheddar mark 1 boiler ,the one that has the poker burner , couple of things dose anyone have the boiler diagram i have 1 for the later version, also it dose not have a water gauge fitted and would like to fit one i would assume the bush at the side of the fire hole and the one on top of the boiler slightly offset from the centre are the connections i could use, also would the brass extension tubes be available or would i have to make them myself i would get the actual water gauge from Gerry at Clevedon steam ,also is there a ceramic burner that would fit instead of the Sievert type burner ,sorry its a bit long ,regards Allan,