How Long Do Roth Oil Tanks Last?

Spring is finally here, so now is a good time to think about system upgrades. If your oil tank is showing signs of rust, it may be time to replace it. A Roth Double-Wall storage tank is one of the best values today, and we talk about its longevity here.

About Roth Storage Tanks

Roth Double-Wall storage tanks are a unique, European style tank assembly. On the inside is a plastic tank that stores heating oil. This internal tank is encapsulated by a rust-proof aluminum housing. This external tank holds 110% of the plastic tank’s capacity, and is designed to prevent a leak in the event the internal tank ruptures.

Roth double-wall storage tanks feature an internal plastic tank and an external aluminum tank for heating oil storage.

Pros and Cons of Roth Storage Tanks

Roth tanks tend to have a love-them or hate-them reputation among HVAC technicians. Here are some of the Pros and Cons:

Pros:

  • Small footprint – can be hidden in a closet in a finished basement.
  • Lightweight – easy for one or two technicians to carry into a basement for installation.
  • Rust-free design – plastic internal tank and aluminum external tank will not rust – even if exposed to the elements.
  • Cover for outdoor installations – Roth tanks for outdoor installations feature an angled cover that shields the fittings, gauge, and top of the tank from sun, rain, snow and ice.
  • 30 year warranty – included from the factory.

Cons:

  • More expensive – Roth tanks can be 20-40% more expensive than traditional steel tanks.
  • Unfamiliar – many technicians are unfamiliar with Roth tanks and are hesitant to install them.
  • Complex installation for twin-tank setups – when installing side-by-side, a very specific procedure must be followed to ensure the tanks will be filled evenly.
  • Limited ports – unlike steel tanks which have a drain port at the bottom, Roth tanks only have openings at the top. As such, the oil lines use one hole, the fill pipe and vent pipe each use one hole, and there is one hole for a gauge. This means that with a Roth tank you must choose to use either a float gauge or a Smart Oil Gauge – you cannot have both.
Roth tank installation can get very complicated when multiple tanks are involved. Also, since there are no fittings on the bottom of the tank, there is only room for one gauge. You can choose to install a float gauge (shown) or a Smart Oil Gauge which will display the level on your smart phone.

How Long Will a Roth Tank Last?

Since Roth has been manufacturing tanks since the early 1970s, they have a good idea of how long they last. Because of the plastic internal tank and durable design, the tanks actually come with a limited 30 year warranty. This warranty is only valid for installations done by a certified Roth installer. With this in mind, we would estimate that Roth tanks last at least 15 years, with many making it past the 30 year mark.

To maximize longevity of your Roth tank, do not store anything on top of the tank. This causes the top to bow in, putting stress on the tank and fittings.

If you’re in the market for a new heating oil tank, check out our guide here for choosing a home heating oil tank. And when you’re low on heating oil, check prices here and don’t forget to fill up at a quarter tank!

Happy heating,

Steve