Firewall between oil tank & boiler

We have an external oil boiler located close to the oil tank. We have just had a new oil boiler fitted and have been told that we need to fit a 30-minute delay firewall between the boiler & oil tank as they are too close together.

Has anybody had one fitted and where did you get it? Having a brick wall built isn't really an option because we wouldn't be able to get at the boiler for servicing. So we need somthing that can be detached if necessary.

Thanks,
JT.

Hi, did you find a supplier of a firewall? I am looking for one currently or a supplier of a fire-rated oil tank.

Thanks,
ORW