Oil Tank Information

Indoor oil tanks

Oil Tank Information
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Indoor Oil Tanks

Many configurations of indoor tanks are available that fit the needs of different types of building structures. The most common type for residential use is the oval-shaped 275-gallon tank, which provides safe and economical storage. Most towns allow for tandem installations, doubling capacity to 550 gallons. Double-walled tanks are also available, providing additional containment security. Tanks are installed by licensed heating installers in accordance with current mechanical code guidelines. Tanks are inspected and tested to ensure leak-free installations.

Above-ground outdoor tanks

Wesson does not recommend installation of heating oil tanks in unconditioned spaces, including outdoors. The following information is provided for homeowners who have no conditioned space available for an oil tank.

Heating fuel begins to cloud (it becomes opaque and more viscous because of the formation of small wax crystals) at about 20 degrees. High-viscosity fuel caused by cold temperature has an adverse effect on burner performance, causing the burner to run inefficiently and unreliably. We recommend piping with a large-diameter, steel-insulated fuel line, the use of a large capacity oil filter, and the installation of a fuel de-aeration device. Outdoor tanks should also be enclosed and insulated whenever possible. Bottom feed valves should never be used on outdoor oil tanks or tanks in unconditioned spaces. Wesson Energy will only deliver kerosene to a tank in an unconditioned space.

What are vent alarms?

Every oil tank should be equipped with a vent alarm system. A vent alarm is a simple device installed inside your oil tank where air is vented. The vent alarm emits an audible whistle while the tank is being filled. When the oil level reaches (and covers) the bottom of the vent alarm, it stops whistling. This lets the delivery person know that the tank is full.

Why do vent alarms malfunction?

Vent alarms can become obstructed with debris, sometimes from rust buildup or insect nests. If and when this happens, the oil delivery driver will not be able to safely fill your oil tank. If this happens, we will notify you immediately so the vent alarm can be repaired. Vent alarms can often be cleaned, but may need to be replaced. Oil tanks more than 20 years old may contain significant amounts of rust sediment. In this case, a new tank system may be recommended.

Underground oil tanks

Underground tanks can be safely and legally installed if certain guidelines are followed. Most towns generally allow only cathodically protected steel tanks, which are also referred to as STIP 3 tanks. These tanks are treated with an epoxy resin coating and a zinc anode attached to the tank. Electrical leads attached to the zinc anode give the homeowner the ability to test the anode periodically to make sure that the tank is functioning. Fiberglass tanks are generally also allowed, although they are more costly and tend to be more difficult to install.

Oil tank removal or replacement

Wesson Energy provides complete service and installation of all types of above-ground residential and commercial storage systems. In addition, we provide comprehensive removal and tank disposal services.

Contact Wesson Energy for a quote today

Don’t wait until after you’ve developed a leak to have your tank inspected. The cost to clean a fuel spill far exceeds the cost of a new tank and supply line. Contact us for a quote or more information.