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Are you considering a new heating oil tank for your home? If so, you’ve probably come across the term “bunded heating oil tank” in your research. But what exactly is a bunded tank, and why should you care? Don’t worry – we’re here to break it down for you in simple terms and help you understand why these tanks are becoming increasingly popular among homeowners.

What is a Bunded Heating Oil Tank?

Let’s start with the basics. A bunded heating oil tank, also known as a “twin skin” tank, is essentially a tank within a tank. Imagine a Russian nesting doll, but instead of dolls, you have oil tanks. The inner tank holds your heating oil, while the outer tank acts as a protective shell.

This outer tank, or “bund,” is designed to catch and contain any oil that might leak from the inner tank. It’s like having a built-in safety net for your heating oil. The bund can typically hold at least 110% of the inner tank’s capacity, ensuring that even if the worst happens, your oil stays contained.

Why Choose a Bunded Tank?

Now you might be thinking, “That sounds great, but do I really need one?” Let’s explore some of the key benefits of choosing a bunded heating oil tank:

  • Enhanced Safety

Safety is the primary reason for choosing a bunded tank. If your single-skin tank springs a leak, you could end up with oil seeping into the ground, potentially contaminating soil and water sources. With a bunded tank, any leaks are contained within the outer shell, preventing environmental damage and costly clean-ups.

  • Environmental Protection

Speaking of the environment, bunded tanks are a much more eco-friendly option. By preventing oil spills, they help protect the soil, groundwater, and local ecosystems from contamination. If you’re looking to reduce your environmental footprint, a bunded heating oil tank is a step in the right direction.

  • Peace of Mind

Knowing that your heating oil is safely contained can provide significant peace of mind. You won’t have to worry about unexpected leaks or the potential environmental and financial consequences that come with them.

  • Compliance with Regulations

In many areas, regulations require bunded tanks for certain installations, particularly in environmentally sensitive areas or for larger capacity tanks. By choosing a bunded tank, you’re future-proofing your installation and ensuring compliance with current and potential future regulations.

bunded oil tank

Understanding the Costs

Now, let’s talk money. It’s true that bunded heating oil tanks generally cost more upfront than their single-skin counterparts. However, it’s important to consider the long-term savings and benefits:

  1. Initial Costs
    A single-skin tank might cost anywhere from £700 to £1,000 for a typical 1,000-liter capacity. A bunded tank of the same size could range from £1,000 to £1,500. That’s roughly a 50-100% increase in initial cost.
  2.  Long-term Savings
    While the upfront cost is higher, consider the potential savings:
    – Reduced risk of costly oil spills and clean-ups
    – Lower insurance premiums (some insurers offer discounts for bunded tanks)
    – Longer lifespan due to the added protection of the outer tank
  3. Environmental Costs
    While harder to quantify, the environmental cost of a potential oil spill from a single-skin tank could be significant. Soil remediation and environmental clean-up can cost thousands of pounds.

The Twin Skin Advantage

The “twin skin” design of bunded tanks offers several advantages beyond just containment:

1. Durability
The outer skin provides an extra layer of protection against physical damage, UV rays, and extreme weather conditions.

2. Insulation
The space between the two skins can act as an insulator, helping to maintain the oil’s temperature and potentially improving heating efficiency.

3. Aesthetics
Many bunded tanks have a sleeker, more modern appearance compared to traditional single-skin tanks, which can be a plus if your tank is visible.

Installation and Maintenance

Installing a bunded heating oil tank is similar to installing a single-skin tank, but there are a few key differences:

1. Professional Installation
While it’s always recommended to have your oil tank professionally installed, it’s especially important with bunded tanks to ensure proper setup and functionality.

2. Space Requirements
Bunded tanks may require slightly more space due to their larger overall dimensions. However, the difference is usually minimal.

3. Maintenance
Bunded tanks require regular inspections to ensure both the inner and outer tanks are in good condition. However, they often require less frequent replacement than single-skin tanks due to their added durability.

Making the Right Choice

Choosing between a bunded and single-skin tank ultimately comes down to your specific needs, budget, and local regulations. However, for most homeowners, the added safety, environmental protection, and peace of mind offered by a bunded heating oil tank make it a worthwhile investment.

Consider these factors when making your decision:

1. Location: If your tank will be near water sources or in an environmentally sensitive area, a bunded tank is strongly recommended.

2. Capacity: Larger tanks (usually over 2,500 liters) are often required to be bunded by law.

3. Long-term costs: Factor in potential savings on insurance and the reduced risk of costly spills.

4. Environmental impact: If reducing your carbon footprint is important to you, a bunded tank is the way to go.

Bunded heating oil tanks represent a significant step forward in home heating safety and environmental protection. While they may cost more upfront, the long-term benefits in terms of safety, peace of mind, and potential cost savings make them an attractive option for many homeowners.

Remember, your heating oil tank is a long-term investment in your home’s comfort and safety. By choosing a bunded heating oil tank, you’re not just buying a storage container – you’re investing in protection for your property, your finances, and the environment.

So, the next time you’re considering a new heating oil tank, give serious thought to going bunded. Your future self (and the environment) will thank you!