just run two wires from your old stat to the new boiler take out the loop wire and connect it up check manual to make shore you are connecting in write place put boiler on turn up stat if boiler does not lite revease wires
you must keep the air gap between the water in the tank and the open vent pipe the open vent should be terminating at least 75mm? above the over flow pipe if you put it under the water level and the temp cut out does not operate the water will keep on heating and the plastic tank will melt sending b...
