Is it possible to replace an oil fired appliance but keep the existing oil storage tank?

Yes, there is no legal requirement, on appliance change, to upgrade an existing oil storage tank to meet current legislation providing that the appliance installation works does not make the oil tank any less compliant than it might be already. However, if you were unfortunate enough to suffer a fire or pollution incident, non compliance may bring about complications with an insurance claim. Our best advice would be for you to also consider upgrading your oil storage tank at the time of appliance replacement.