Where is serial number on Rheem hot water heater?

On Rheem tankless water heaters the serial number is located inside of the heater body on the right side. On Rheem heat pump water heaters the serial number is located on a label on the upper left side of the unit.

How big is the Rheem performance 40 gal water heater?

The Rheem Performance 40 Gal. Natural Gas Tall Water Heater comes with a 36,000 BTU/hour environmentally friendly low NOx burner that provides ample hot water for households with 2 to 4 people. The push button ignition system ensures safe and easy startup.

What are the most common problems with a Rheem water heater?

Here’s a list of the most common Rheem water heater problems to look for. Solutions requiring multiple steps are found below. A tripped circuit breaker will shut down an electric heater and gas models that use electricity. Gas: Check if the gas valve has been turned off.

How can I tell how old my Rheem water heater is?

On older models, you can determine the age of your unit by decoding the water heater serial number. Some manufacturers, including Rheem, made it easy by incorporating the month and year built into the first 4 digits of the serial number. For instance, the picture below shows that this Rheem water heater was manufactured in December of 1991 (1291).

Where can I get a free Rheem water heater manual?

Get a free estimate online from top local home service pros in your area. Rheem doesn’t have model number specific manuals but instead a single manual may cover a various sizes of a specific model. You can either left-click on the link to open the manual in a new tab or right-click and save a copy directly on your computer.

The Rheem Performance 40 Gal. Natural Gas Tall Water Heater comes with a 36,000 BTU/hour environmentally friendly low NOx burner that provides ample hot water for households with 2 to 4 people. The push button ignition system ensures safe and easy startup.

Are there any age encoding schemes for Rheem water heaters?

To date we have found at least nine Rheem water heater age encoding schemes depending on the era of manufacture and also on the type of water heater. We summarize these below. Photo: an older Rheemglas Standard water heater, Serial No. # R 0884B10488 decodes to August 1988.

What are the serial numbers on a Rheem water heater?

The third and fourth numbers in the serial number, usually after several letters, is the year of manufacture of a Rheem water heater. So the manufacturer’s data plate below indicates that it was made in 2001.

Are there any older Rheem tankless water heaters?

RHEEM TANKLESS WATER HEATER USE & CARE MANUAL [PDF] for Rheem®, RUUD®, Richmond®, Paloma®, and Sure Comfort® residential tankless water heaters. Thank you for the added information, Nick. I will continue researching to see if we can find a key to older Rheem water heaters that pre-date the modern date encoding schema.