My daughter wanted a quote for a replacement oil fired boiler. The heating engineer who she knows and trusts says that the existing tank is too close to the flue outlet and is not a double skin tank. He says that he is not allowed to replace the boiler unless she moves the position of the tank and replaces it with a double skin tank. He said he has to provide details to the Local Authority. My understanding was that if you were having a boiler replaced then it was not mandatory to make changes to an existing oil tank, am I wrong. The cost would be much more and to be honest she can’t really afford to pay for so much work. Any advice would be much appreciacted.