The Rheem water heater serial number is found on the data tag or label on your water heater’s exterior. 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.Click to see full answer. Similarly, how can I tell how old my Rheem water heater is?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. Once you have found this, look at the first four numbers. The first two numbers represent the month of manufacture while the second pair show the year of manufacture.Likewise, how does a Rheem water heater work? How to Light a Rheem Water-Heater Pilot Rotate the gas knob on your Rheem water-heater clockwise until it is in the “Off” position. Rotate the water-heater temperature dial counterclockwise until it is set to the lowest temperature setting. Lift the outer door off of your Rheem water-heater. Push down the red button to the left of the gas knob. Beside above, how do you read a water heater label? First, locate the manufacturers label with the serial number on the side of your unit. This sticker is usually around any warning labels and the energy guide. Check to see if the installation date is noted on the sticker.How long will a Rheem water heater last?Average lifespan for Rheem Water Heaters. 12.5 Years out of 68 Checkins.

ncG1vNJzZmivp6x7pLHLnpmroaSesrSu1LOxZ5ufonuotI6hprBllKR6qnnRnpidZZ2uerO0xJ6kZq%2BRqbKzeceemK2domK6sLDEpWSnrZ2XsrN7