ive recently had a oil filled rayburn nouvelle fitted,problem is that when the cooker only is on it is fine,now whren i fire up the boiler and hot water the pipes start banging the water is getting to hot i have a pump fitted which i have turned to no3 ,the pump is fine but the pipes are still banging,ihave to run the hot water of and turn the boiler off,if both are on together,it sounds like the house is gonna blow,any suggestions please