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Locate the Manufacturer's Sticker — Locate and Decipher Your Water Heater's Serial Number

Beginner1 hour

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Water Heater Lifespan: Estimating Replacement & Planning · Step 1 of 3

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In this video

Find the large sticker on the side of your water heater tank. This sticker contains essential information, including the model number, serial number, gallon capacity, and often the type of heater. This information is useful when calling for service or replacement.

Goal: Identify Heater Specifications

Used in this video

  • Flashlight (brand: none, Flashlight Type: Handheld) · optionalTo illuminate the sticker in a poorly lit area.
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This Old House

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FAQs

What essential tools do I need to accurately locate and read my water heater's serial number, especially in tight or dark spaces?

You'll primarily need a good flashlight and your smartphone camera. The camera can help you take a clear picture of the label if it's in an awkward position or hard to read directly. A small mirror might also be useful for seeing around corners or obscured labels.

Are there any safety precautions I should take before attempting to locate or inspect my water heater's serial number?

Always be aware of your surroundings; gas water heaters have gas lines and electric models have electrical connections. Avoid touching hot surfaces or anything you are unsure about. While this task is low risk, if you smell gas or see frayed wires, do not proceed and contact a professional immediately.

How challenging is it to find and decode the serial number, and what if I can't locate or decipher it?

Finding the serial number is usually beginner-friendly, but can be tricky if the label is obscured or damaged. If you can't find it after checking all sides of the tank, or if it's unreadable, try searching online for 'your water heater brand serial number location' or contact the manufacturer's customer service with photos of the unit.

Once I've found the serial number, what's the easiest way to decode the manufacturing date?

Most manufacturers embed the year and sometimes the week or month in the serial number. The quickest method is to search online for '[Your Water Heater Brand] serial number date code.' Many brands have online decoders or charts, or you can often call their customer service for assistance.

Transcript
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So there is a sticker on your water that has a D model number. So it's gonna be this guy right here I'm just gonna have your model number serial. You don't really need that If you don't want to give it to us, but it's on there as well I'll tell us the gallon size if it's taller short and what kind it is So if you don't have that or you can't find it or if it's ripped or broken or something Next you'll have to look on top of your water heater. So on this particular unit. This is what we call a gravity vent

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