Internal oil storage tanks should always be contained within an enclosed chamber, but never installed in a habitable area. Detailed requirements for the installation of oil storage tanks within habitable buildings and domestic garages can be acquired from OFTEC – but include;
Tanks installed indoors must be stored at the lowest level, inside a fire-resistant chamber.
All indoor tanks must be fitted with a secondary containment system (e.g. bund)
All drains and offshoots in the proximity of the tank must be closed or sealed
The tank must be accessible for inspection or refilling at any time