Inspection Training

Heating Label Information (UPDATED 7/4/18)

While the inspector is at the heating system the heating label needs to be checked so the age of the system can be determined. It is sometimes difficult to get a clear picture of the label due to its location in the heating system but being able to read the serial number from the label is important to look up the date of manufacture. Please read the complete procedure below.



International Standards of Practice for Performing a General Home Inspection


3.4. Heating


I. The inspector shall inspect:

A. The heating system, using normal operating controls.


II. The inspector shall describe:



III. The inspector shall report as in need of correction:

B. If the heating system was deemed inaccessible.


IV. The inspector is not required to:



Axium SOP Differences

Axium Requires: The inspector will check the heating label to determine the age of the heating system.


Tools Needed

The inspector might need to use a flashlight in order to find and see the heating label clearly. The inspector will also use to determine the age of the heating system


  • After the front cover of the heating system has been removed you will look inside the unit for the heating label. Once the label has been found you will take one picture of the label that clearly shows the serial number so we can determine the age of the heating system.
  • Next, we will look up that serial number on to determine the age of the heating system. If it is older than 15 years old, we will want to make that a repair/replace comment.


Common Defects

  • The furnace being older than 15 years old.


Common Mistakes

  • Not checking the heating label for the age of the furnace.
  • Determining the wrong age of the furnace by reading the label wrong.
  • Not taking a clear picture of the heating label.

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Report / Software


  • Information from the [word 3] data plate is shown in the photo. The [word 3] was manufactured by [word 1]. The approximate year of manufacture was [word 2].
    • Manufacturer
      • Multiple
    • Year
      • 1964 to 2018
      • Unknown
    • Identify
      • Boiler
      • Furnace
      • Heating System


  • N/A


  • The heating label was not present, not accessible, or unreadable at the time of the inspection.


  • The furnace was manufactured in [word 1]. Due to the age of the furnace, further analysis by a licensed HVAC contractor is recommended.
    • Year
      • 1964 to 2018
      • Unknown