31/10/2018
Replacing or installing a new heating oil tank for your home is a significant undertaking that requires careful consideration of both legal compliance and practical application. This guide aims to equip you with the knowledge needed to make informed decisions when obtaining tank installation quotes. We will delve into crucial aspects such as tank placement, the selection of the appropriate tank type, ensuring adequate access for both yourself and delivery drivers, the importance of correct installation for warranty and safety, the proper removal of old systems, and understanding your insurance provider's requirements. Engaging a competent tank installer is paramount, as they possess the expertise to ensure you adhere to legislation and that your new tank meets your specific needs effectively.
Key Considerations for Your Oil Tank
When planning for a new heating oil tank, several factors come into play to ensure safety, efficiency, and legal compliance. A competent installer will assess your site for potential environmental risks such as nearby watercourses, unsealed manhole covers, wells, boreholes, high water tables, or sensitive groundwater areas. The presence of these can influence the permissible location of your tank and may necessitate the use of secondary containment systems to meet legal obligations. Opting for a qualified professional not only helps you avoid costly mistakes and potential legal issues but also provides a value-for-money service by preempting future problems.
Where to Place Your Oil Tank
The location of your oil tank is critical due to the severe environmental and health impacts that an undetected oil spill can cause, particularly from underground installations or pipework. It is essential to choose a location that minimises pollution risks and enhances security. Placing the tank in view of a frequently used room allows for regular visual checks, which can deter theft, a growing concern. Ideally, your oil tank should be situated above ground and within a secondary containment system. Always check local building regulations regarding tank placement.
Underground vs. Above Ground Tanks
We strongly advise against the installation of underground oil storage tanks. Such installations often require planning permission, and it is crucial to consult your environmental regulator before proceeding to discuss feasibility, safety, and legality. Restrictions may apply, especially in sensitive groundwater areas. If an underground tank is your only perceived option, seek expert advice.
While tanks can be installed inside a building, this typically mandates secondary containment and adherence to fire resistance standards. The tank must be housed in a fire-resistant chamber, ideally at the lowest accessible level. Consult a competent installer for guidance on such installations.
Furthermore, it's vital to check if your chosen location is within a flood zone, as flooding poses a significant risk of damage to oil tanks. Refer to specific flood guidance for more detailed information.
Types of Oil Tanks: What You Need to Know
When selecting an oil tank, ensure it meets recognised European, British, or industry standards. These certifications guarantee that the tank has undergone rigorous manufacturing and testing processes. Your tank should be clearly marked with its nominal (maximum) filling capacity to simplify fuel ordering. Crucially, all new tanks must display instructions for action in the event of an oil leak or spill. If this information is absent, you can obtain a supplementary sticker.
Underground Domestic Oil Tanks
Only tanks specifically designed and manufactured for underground use should be buried. These tanks feature special designs to withstand external pressure when empty. We highly recommend seeking specialist advice for underground installations. Ensure your installer strictly follows the manufacturer's instructions regarding depth, backfill material, and concrete encasement. Tanks should be encased in concrete and sited at least two metres away from vehicle traffic or parking areas.
Second-Hand Tanks
If you are considering a second-hand tank, have it thoroughly inspected by a competent professional before installation. Previous use, transportation, or even minor visual damage like corrosion, UV degradation, or damaged threads can compromise the tank's integrity. Remember, you are responsible for the oil stored at your property, and even seemingly minor issues can lead to significant long-term problems and potential pollution incidents.
Never purchase a deformed, misshapen tank, or one with visible rust (metal tanks) or whitening, cracking, or splits (plastic tanks).
Ensuring Access to Your Tank
Both you and the fuel delivery driver require clear and unobstructed access to and around the tank. This is essential for routine inspections and safe refuelling. Consider the following:
- Tank Location: Ensure ample space surrounds the tank for visual inspection and for the driver to stand safely during filling.
- Fill Point Access: The fill point must be easily reachable by the delivery hose without the driver needing to climb over obstacles or navigate through hedges.
- Tanker Parking: Verify that there is a suitable parking location for the oil tanker.
If in doubt, contact your fuel delivery company to assess your site's suitability.
Correct Installation: The Foundation of Safety
The base upon which your oil tank rests is critical for its stability and safety. Building Regulations mandate that oil tanks be installed on a stable, level base that extends at least 300mm beyond the widest point of the tank in all directions. This provides a crucial buffer against fire spread from nearby plants or structures.
The base can be constructed from either a 100mm thick concrete slab or closely butted paving slabs of a minimum 50mm thickness. Regardless of the material, the base must be founded on stable ground conditions appropriate for the site.
Elevated Tanks
In cases where tanks need to be elevated (e.g., to serve a range cooker), it is imperative that the tank is correctly supported, adhering strictly to the manufacturer's installation instructions. Plastic oil tanks, in particular, require support across their entire base area to prevent deformation and potential failure.
Removing Your Old Tank and Pipework
Any redundant oil tank and associated pipework should be properly decommissioned, rendered unusable, and clearly marked. Ideally, have the old tank and pipework removed by a professional as soon as possible. This prevents accidental refilling, which could lead to a pollution incident. If pipework cannot be removed, it must be permanently capped to prevent inadvertent use. Your competent tank installer should be able to manage the removal of your old tank and pipework as part of the new installation process; this should be explicitly stated in your contract.
Your Insurance Company's Requirements
It is advisable to consult with your insurance provider regarding their stance on oil tank placement. Their requirements may influence your building and contents insurance policies. They may also offer valuable advice on tank security measures, which could potentially impact your insurance premiums. Ensuring your insurer is aware of your oil tank and its location can prevent unexpected issues and ensure adequate coverage.
Frequently Asked Questions
Q1: Can oil storage tanks be installed underground?
While technically possible, underground installation is generally not recommended due to potential environmental risks, planning permission requirements, and stricter regulations, especially in sensitive areas. Always consult your environmental regulator and a competent installer.
Q2: What are the key benefits of an above-ground tank?
Above-ground tanks are easier to inspect, maintain, and replace. They also pose less risk of undetected leaks impacting groundwater, and installation is typically less complex and costly than underground systems.
Q3: How often should I check my oil tank?
Regular visual inspections are recommended. Check for any signs of damage, corrosion, leaks, or instability. It's also wise to monitor your oil levels to avoid running out unexpectedly.
Q4: What is secondary containment?
Secondary containment is an additional barrier designed to capture any leaks or spills from the primary tank. This is often a bunded area or a double-skinned tank and is a legal requirement in many situations to prevent environmental pollution.
Q5: What standards should my new oil tank meet?
Your new oil tank should comply with relevant European, British, or industry standards, ensuring it has been manufactured and tested to high-quality specifications.
Conclusion
Investing in a new heating oil tank is a decision that requires careful planning and adherence to best practices. By understanding the critical factors discussed – from location and tank type to installation and regulatory compliance – you can ensure a safe, reliable, and environmentally sound heating oil system for your home. Always prioritise professional advice from competent installers and consult relevant regulations to guarantee a successful outcome.
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