Outdoor Fuel Oil Tanks: Safe Or Not?

can a fuel oil tank go outside

Fuel oil tanks can be installed outdoors, but there are several factors to consider. Firstly, outdoor tanks need to meet safety standards and require proper maintenance, including regular inspections, rust prevention, and addressing repairs. They also need additional protection from harsh weather conditions, such as insulated covers and anti-rust treatments. Furthermore, access to the tank should be clear for fuel deliveries, and it should be installed on a solid foundation to prevent shifting or falling over. While outdoor tanks offer advantages like increased storage space and easier leak fixes, they are more susceptible to extreme weather, condensation, rusting, and corrosion. Indoor tanks, on the other hand, provide improved performance, reduced maintenance, and protection from vandalism and accidental damage. Ultimately, the decision between an indoor or outdoor fuel oil tank depends on various factors, including climate, safety standards, and personal preferences.

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Fuel oil tanks can be installed outdoors

However, there are several considerations to take into account when installing a fuel oil tank outdoors. One of the main challenges is protecting the tank from the elements, especially in cold climates. Anti-gel additives will need to be added to the oil to prevent it from thickening and clogging fuel lines in extreme cold. A cover can also help to maintain a consistent oil temperature and reduce the chances of blockages. It is also important to ensure that the tank has proper base support to avoid shifting and settling, and it should be placed on a solid foundation to protect it from the wind and potential vandalism.

Another important consideration is the location of the tank. It should be downhill from any outside water source and should not block any household entrances or windows. The tank should not be installed underneath eaves or rain gutters, as ice, snow, or icicles might fall and damage the tank over time. It is also crucial to ensure that the tank is easily accessible for fuel deliveries and annual inspections.

While there are benefits to installing a fuel oil tank outdoors, it is important to carefully weigh the advantages and disadvantages before making a decision. Some people prefer indoor tanks to avoid the challenges associated with exposing the tank to the elements and to maintain better control over the temperature and stability of the oil. Ultimately, the decision of whether to install a fuel oil tank outdoors depends on various factors, including climate, available space, and personal preferences.

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Outdoor tanks need protection from harsh weather

Fuel oil tanks can be installed outdoors, but they need to meet safety standards and require proper maintenance to withstand harsh weather conditions. Here are some essential considerations for protecting outdoor fuel oil tanks from harsh weather:

Weatherproofing and Insulation:

Shielding the tank from the elements is crucial. Install a weatherproof cover or shelter to protect it from wind, snow, and ice. This prevents snowdrifts and ice from blocking access to the tank and delaying fuel deliveries. A shelter also helps regulate temperature, reducing the risk of condensation forming inside the tank, which can lead to rust and water contamination.

Anti-Corrosion and Rust Prevention:

Apply anti-corrosion coatings to the tank to prevent rust. Regularly clear any snow or ice buildup, and elevate the tank on a stable platform to minimise moisture exposure and structural damage. Keep the tank at least half-full during the summer to prevent interior condensation, which can also lead to rust.

Tank Placement and Stability:

Ensure the tank is installed on a level surface and centred properly to prevent movement or the risk of falling over. Support legs should be placed on a concrete pad for stability. Place the tank in a shaded area, away from direct sunlight, to prevent overheating and pressure buildup. Consider additional support for areas prone to high winds or flooding, such as a shelter or anchoring.

Regular Maintenance and Inspections:

Conduct routine maintenance and annual inspections to extend the life of your outdoor tank. Regularly monitor oil levels during winter, as snow and ice can make visual checks difficult. A tank gauge is a simple tool to help with this. Address any minor repairs promptly and consider insuring your tank to cover leaks, repairs, or replacements.

By implementing these measures, you can effectively protect your outdoor fuel oil tank from harsh weather conditions and ensure its durability and efficient operation.

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Heating oil can gel in extreme cold

Fuel oil tanks can be installed outside, but they require extra care during the winter months. While the oil itself does not freeze, it can thicken or "gel" in extreme cold. This gelling can slow the flow of fuel and potentially clog fuel lines, filters, and nozzles, reducing furnace efficiency or causing it to shut down. To prevent this, it is recommended to use heating oil additives or treatments designed to fight freezing and the formation of sludge. These additives modify the wax crystal structure and lower the temperature flow range of the oil, preventing the oil from gelling and maintaining a consistent oil temperature. Additionally, it is important to maintain the tank by regularly checking for rust spots, small cracks, leaks, and blockages in the fuel lines.

Heating oil is similar to the diesel fuel burned by big-rig trucks and is classified as distillate fuel oil. It contains paraffin waxes that can come out of solution when the fuel gets too cold, leading to the gelling issue. The gelling process starts when the heating oil reaches around 32 degrees F, at which point the waxes become insoluble and give the fuel a cloudy appearance. As the temperature continues to drop, more waxes are released, increasing the risk of clogged oil lines and filters.

To prevent heating oil from gelling, several measures can be taken. Firstly, using treated oil with heating oil additives can help. These additives are designed to lower the gel point of the heating oil and prevent the formation of sludge. Blended heating oils, such as a mix of diesel and kerosene, can also lower the gel point. Additionally, installing a wider fuel line can minimize gel blockages and ensure a consistent flow of oil during cold weather. Burying the fuel line can also help as the ground provides natural insulation.

Another important measure is to maintain the heating system through regular preventive maintenance. This includes scheduling annual inspections in late summer or early fall to identify any issues before the winter heating season. During these inspections, a technician will check for rust spots, cracks, leaks, and blockages. They will also test the structural stability and safety valves of the tank. By being proactive and taking these preventive measures, homeowners can avoid the inconvenience and expense of a no-heat emergency during the cold winter months.

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Indoor tanks have improved performance and less maintenance

Fuel oil tanks can be installed both indoors and outdoors. While the consumer can freely choose the location of their tank, experts recommend installing them indoors. Indoor fuel oil tanks are generally placed in a utility room, basement, or garage.

Indoor tanks are also less likely to be damaged by condensation and changing temperatures, which can put water into the oil and cause winter service problems and eventual corrosion inside the tank. Additionally, ice and water dripping from the roof can break oil lines coming from outdoor tanks. Outdoor tanks may also become unstable, creating an environmental risk. They may require the use of anti-gel additives or a kerosene blend in the winter to keep the home heating fuel oil from "gelling" in extremely cold temperatures.

Indoor tanks are also less likely to be exposed to oily smells if they have been professionally installed. However, if issues with the tank, such as internal corrosion, do begin to happen, the resulting smell will more quickly alert you to the problem. Early detection can make the difference between a simple and affordable repair and one that will cost thousands of dollars to clean up and mitigate the environment.

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Outdoor tanks may require permits

Fuel oil tanks can be installed outdoors, but they need to meet safety standards and be properly maintained. Outdoor tanks are exposed to the elements and harsh weather, so they require additional protection, regular monitoring, and maintenance to ensure they remain reliable and safe.

Before installing an outdoor fuel oil tank, it is important to check with your local building department or council whether any permits or approvals are required. In some areas, installing an outdoor fuel oil tank may be subject to specific regulations and guidelines. Failure to obtain the necessary permits can result in fines or even the discontinuation of services, as seen in some strict cases. Therefore, it is crucial to consult the relevant authorities and understand the requirements and procedures for obtaining the necessary permits.

The placement of the outdoor tank should also be carefully considered. It should be located downhill from any outside water source and away from household entrances, windows, and rain gutters. The tank should not be placed directly against the building to prevent objects from getting stuck and causing external rusting. Additionally, it should be placed on a solid foundation, such as a concrete pad or reinforced patio tiles, to ensure stability and avoid the risk of it falling over.

To protect the tank from the weather, a solid roof or cover can be installed to shield it from debris, rain, and snow. Insulated covers, heated blankets, and weatherproof materials can also be used to insulate the tank and fuel lines, preventing oil gelling in cold climates. A small shelter or windbreak can further stabilise the temperature and protect against harsh winds.

By following the necessary permitting procedures and implementing proper placement and protection measures, you can ensure that your outdoor fuel oil tank complies with safety standards and regulations.

Frequently asked questions

Yes, heating oil tanks can be installed outdoors, provided they meet safety standards and are properly maintained.

When placing a fuel oil tank outdoors, it is important to consider the following:

- The tank should be placed on a solid foundation that extends below the frost line to avoid shifting and settling.

- The tank should be protected from debris, vandals, and wind.

- The tank should be located where there is no chance of it being hit by a vehicle.

- The tank should be insulated to maintain a consistent temperature and prevent oil gelling.

- The tank should be inspected regularly for rust and corrosion.

Some advantages of placing a fuel oil tank outdoors include:

- Easier access for maintenance and repairs.

- More storage space indoors.

- Leaks are easier to fix.

- Reduced risk of frozen pipes and fuel lines.

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