The Atlantis 1250-Litre Steel Bunded Imperium® Heating Oil Tank is built for secure, long-term storage of heating oil, kerosene, diesel, HVO, waste oils and more. Its low profile design makes it easier to fit where height is limited, without compromising on strength or capacity. Whether for homes, workshops or light commercial settings, it offers reliability, safety, and compliance in equal measure.
Imperium® Technology – A Smarter Build
This tank incorporates Imperium® technology, Atlantis’s modular construction method that emphasises precision and durability. By reducing unnecessary welds, enforcing tighter tolerances, and simplifying structural design, the tank gains better corrosion resistance and consistency over time. The steel used is a high-grade structural type, built to recognised standards, to ensure it withstands regular use.
Bunded Protection for the Environment
The 1250L model is pre-bunded, meaning it has a built-in secondary containment shell capable of capturing spills or leaks from the primary tank. This extra layer of defence helps minimise environmental risk and ensures greater compliance with regulations.
Flexible Connections via Removable Plate
All main fittings are mounted on a removable top plate, making inspection, repairs, or modification far easier. Standard ports and features include:
- 2″ fill point with aluminium cap & chain
- A spare 2″ top socket
- 1.5″ port for a contents gauge
- 1″ socket with internal suction pipe (e.g. for sludge/water drainage)
- 1″ bottom outlet
- Bund vent paths (tank-to-bund vent and bund-to-atmosphere)
- Bund alarm probe socket
- Vents with caps and drip control
Designing these into a removable plate means you won’t need to dismantle the tank shell to service connections.
Design & Finish That Work
- Low profile shape makes it easier to site under eaves or in height-restricted areas
- Pitched roof for rain run-off
- Lifting eyes for safe movement
- Full-length base bearers for stability on prepared concrete or masonry base
- Finished in Holly Green with a protective two-coat rust resistant system
- Included touch-up paint for minor installation scratches
Capacity, Dimensions & Weight
- Nominal (usable) capacity: 1,249 litres
- Brimful capacity: 1,315 litres (approx, depending on design)
- Outer dimensions (L × W × H): 2,000 mm × 1,250 mm × 600 mm (for this low profile form)
- Empty weight: ~264 kg
- Full (fuelled) weight: ~1,471 kg
These dimensions show how the low profile design gives the same capacity in a flatter form factor.
Installation Guidance
To ensure safety, stability, and future compliance, the tank should be installed on a solid, level concrete base that extends at least 300 mm beyond the tank footprint in all directions. For this model, a base around 2,530 mm × 1,310 mm is recommended.
Because it sits on full-length base bearers, the load is spread evenly, reducing point loading on the base.
Warranty & Confidence
Atlantis backs this tank with a 10-year manufacturer’s warranty, provided it’s installed and maintained per guidelines. With good installation and care, the protective coatings and modular build make long life an expectation, not just a hope.
Who It’s For
This 1250L low profile model fits scenarios such as:
- Properties with height limitations (eaves, low ceilings, garages)
- Homes or buildings needing larger fuel reserves without a tall footprint
- Commercial or agricultural settings where environmental protection is essential
- Installers looking for a compact, adaptable, serviceable tank
