Picked this up today ,my first heater. It belonged to the late father of an old neighbour of ours who used to work with my wife’s Father We moved 10yrs ago , it was a chance FB market place listing I thought it was an R1 , but I’m told by those that know it’s a rarer RH57 So far it’s had clean up , a light recommissioning, builds pressure but burns yellow on ignition , so it’s going to get a full strip down to see if I can get it serviceable
