Harlequin 5400 Litre Bunded Oil Tank
The Harlequin 5400 Litre Bunded Oil Tank is designed for the safe and compliant storage of heating oil in domestic, commercial and agricultural installations. Its large capacity makes it an ideal solution for properties, businesses and facilities with higher fuel consumption requirements, reducing the need for frequent fuel deliveries.
Manufactured from high-quality Medium Density Polyethylene (MDPE), this integrally bunded oil tank offers exceptional durability, corrosion resistance and low maintenance. In addition, the robust double-skinned “tank within a tank” construction provides secondary containment, helping to protect the surrounding environment in the event of an internal leak.
A bunded oil tank is often described as a “tank within a tank”. The inner tank stores the fuel, while the outer bund provides secondary containment. As a result, it helps prevent ground contamination and supports compliance with current oil storage regulations.
Suitable for domestic heating oil storage, commercial premises, agricultural installations and larger fuel storage applications, this Harlequin bunded oil tank combines durability, environmental protection and dependable performance in one high-capacity design.
Key Features
- Integrally bunded (double-skinned construction)
- Dimensions: L 2575 x W 2575 x H 2100 mm
- 5400 litre capacity
- Harlequin Smart Gauge with app-connected fuel monitoring – included
- 2″ BSP fill point (standard for fuel deliveries)
- Inner tank vent
- 16″ lockable access lid
- 4″ lockable inspection cap
- Bottom 1″ BSP Female outlet – Standard bottom outlet fitting kit supplied for straightforward pipework connection
- Manufactured from durable MDPE
- 10-year manufacturer’s warranty (upon registration)
Installation Requirements
This tank must be installed on a flat, level and non-combustible base that is capable of supporting the tank at full capacity. The base must extend fully beneath the tank footprint and provide continuous support across the entire underside.
Minimum Base Dimensions:
- Length: 3175mm
- Width: 3175mm
Installation must comply with current building regulations and applicable oil storage guidelines.






