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Homeowner checking the GREMLIN app, which shows a tank level gauge for their heating oil tank
GREMLIN

Heating Oil Tank Monitoring

Check Your Oil Level Anytime with GREMLIN

A GREMLIN tank monitor measures how much heating oil is left in your tank and shares the reading with you and with NOCO. Check your level and usage from your phone, skip the trip to the basement, and help us plan your next delivery before you run low.

REQUEST A GREMLIN MONITOR

What You Can See in the App

Current Tank Level

See how much heating oil is left in your tank.

Fuel Usage

Track how much oil you've been using over time.

Estimated Next Delivery

View an approximate date for your next oil delivery. Applies to Automatic delivery customers only.

Easy Contact

Reach NOCO directly from the app when you need us.

No Basement Trips

No stairs, no squinting at the gauge. Check your tank from anywhere.

Wi-Fi or Cellular

Readings are sent over your home Wi-Fi or a 4G LTE connection, depending on the model.

How GREMLIN
Works

1

Installed on Your Tank

A NOCO technician fits the monitor into an available opening on your above-ground heating oil tank. Installation typically takes less than 10 minutes.

2

Measures Your Oil Level

Using ultrasonic technology, similar to sonar, the monitor bounces a sound signal off the surface of the oil to determine how much is left.

3

Sends Readings Automatically

The reading is sent wirelessly over Wi-Fi or a cellular connection, depending on your model, generally once a day.

4

Helps Us Plan Your Delivery

You see your level in the app, and our team uses the same readings to spot tanks that need oil and schedule deliveries more efficiently. Applies to Automatic delivery customers only.

Green GREMLIN heating oil tank monitor

Why Get a GREMLIN Monitor?

A small device on your tank makes a big difference in how you manage your heating oil, and how well we can plan for you.

Helps Prevent Run-Outs

Daily readings help us see when your tank is getting low so we can plan a delivery before you run out. Applies to Automatic delivery customers only.

Peace of Mind

Knowing how much oil you have makes it easier to plan ahead and head into heating season with confidence.

Easier Access

Especially helpful if basement stairs, reaching your tank, or reading a traditional gauge is a challenge.

Built to Last

Battery powered and designed to run for years, backed by a two-year manufacturer warranty.

Simple, Straightforward Pricing

Buy your GREMLIN monitor once, then keep it connected with a low annual service charge.

GREMLIN Monitor

$300 one-time purchase

The monitor is yours to keep. You own the equipment outright from day one.

Annual Service

$69.99 / year, plus tax

A low annual service charge, billed once a year in addition to the one-time purchase of your monitor.

No strings attached. If you ever switch to another fuel company, your GREMLIN monitor is still yours to keep, and we'll cancel the annual service charge immediately.

Prices shown before applicable sales tax.

NOCO heating oil delivery truck on the road beside a snowy field

Smart Monitoring, Clear Expectations

GREMLIN gives you and our team a clear view of your oil level. It's a monitoring tool, not automatic delivery or a guarantee your tank can never run empty, so here's what to keep in mind.

  • Readings are generally sent once a day, not continuously.
  • Wi-Fi models need a working home Wi-Fi connection. Cellular models need cellular coverage at your home.
  • The estimated next delivery date in the app is an estimate, not a confirmed appointment. Applies to Automatic delivery customers only.
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Request a GREMLIN Monitor Today

Fill out the form and a NOCO representative will reach out to go over the rental and purchase options and schedule your installation.

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