#Water heater serial number lookup how to
#Water heater serial number lookup serial numbers

With Bradford White, things are a little more complicated since this manufacturer uses a letter in the serial number to represent the year and a letter to represent the month.

The following brands are also manufactured by American Water Heaters and can be read in the same way: This means a serial number starting with 9835 would have been made in the 35 th week of 1998.Īmerican Water Heaters makes units that are sold under many other brand names. They consist of 10 digits, the first two of which tell the year and the second two of which tell you the week of the year. American Water Heaters water heater ageĪmerican Water Heater rating plates are easy to read. Smith, and their rating plates can be read in the same way. The Glascote and PermaGlas water heater brands are also manufactured by A.O. Smith, the year of manufacture comes first, followed by the month, so for example, if the first numbers in the serial number are 9710, the date of manufacture was October 1997. The serial number will consist of 10 numbers and letters, and you simply look for the first four numbers in the sequence to find the date of manufacture. Smith water heater rating plates can be a little more difficult to decode, but once you know what to look for, it’s still fairly straightforward.

#Water heater serial number lookup serial numbers

The following brands are manufactured by Rheem, and for the most part, their serial numbers can be read in the same way – although sometimes the week of the year is given instead of the month.Ī.O. Rheem also makes water heaters that are sold under other brand names.

11 is the month, November, and 99 is the year, 1999. The first two numbers represent the month of manufacture while the second pair show the year of manufacture.įor example, if the first four numbers are 1199, the water heater was made in November of 1999.

Once you have found this, look at the first four numbers. With a Rheem water heater, once you have located the rating plate, you need to find the serial number, which will be made up of 10 numbers and letters. This company is known for its high quality electric tankless water heaters and its tankless gas water heaters, and rating plates on models from this company are easy to decipher. If you want a preview to show you the kind of thing you should be looking for, check out this video before reading on – although again, remember that the rating plate on each water heater will be slightly different.Ī good company to start with is Rheem. So now let’s look at some of the most common manufacturers and brands to see how it’s done.

#Water heater serial number lookup how to

The format is different for each company, but it’s not difficult to understand – you just need to know how to read it. However, one constant is the serial number, and this usually contains the date of manufacture. The information displayed varies – for example, if you have a water heater with a tank, the information will be different from the information on a tankless water heater. How to work out the age of your water heater will depend on the manufacturer of your unit, but the idea is essentially the same.Įvery water heater has a rating plate on it that contains information such as the name of the manufacturer, the model, the wattage of the heating elements, its capacity in gallons and more. If you don’t know where to look, here’s our guide to how to determine the age of your water heater. However, at some point, it may break down and need repairing or even replacing entirely – and if this happens too early, you will need to know its age to see if it is still under warranty. Thankfully, if you buy a reliable model from a respected brand and keep it properly maintained, you can expect it to give you a good many years of service. Water heaters are not cheap, and buying a new one can be a significant investment.