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Hi, i have just started servicing oil boilers and am noticing that the insulation on some of them is pretty bad and needs replaced. I was just wondering what is the best material to use? Can i buy a roll of insulation in somwhere like B and Q and use this or is there a specific type of...

Please can someone help me with a query? I have just finished a course in boiler servicing and fault finding and have had my first call out. The burner keeps shutting off, i have put the feul gauge on the fuel pump and its reading 110 psi. I took out the burner and the fuel is getting to the...