How to Check the Age of Your Hot Water Tank
Heater Identification Label
Water heaters have an identification label which shows the date of manufacture. If the label is not legible, then a physical inspection of the anode as well as a water discolouration check is the only way to determine the condition of your heater and whether replacement of the anode will be beneficial. The following table details the location of the identification label for the majority of models currently in service.
Location of Hot Water Tank Label
| Make | Type | Location |
|---|---|---|
| Rheem | cylindrical gas & electric | On the right hand side, approx 8cm down from top |
| external gas (all models) | On the inside of the pilot light cover plate | |
| Vulcan | cylindrical electric | Top left, above the hot water outlet |
| external gas (from 1995) | On the inside of the pilot light cover plate | |
| external gas (pre 1995) | No date of manufacture shown | |
| Hardie Dux | cylindrical electric | In the middle of the heater at the front |
| rectangular electric | Bottom left above the element cover plate | |
| external gas | Bottom left next to the pilot light cover plate |
