How Old Is My Nordyne Furnace?
In a Nordyne-family serial number, the two digits after the first three letters are the year and the next two are the month. Type the serial number from your furnace's data plate below.
Where the serial number is on a furnace
Take off the front lower panel (turn the power off first). The data plate is a metal or foil sticker on the inside of the door or on the side of the cabinet, next to the blower. The serial number is usually labelled "Serial No.", "S/N" or "Ser. No."
How to read a Nordyne serial number
In a Nordyne-family serial number, the two digits after the first three letters are the year and the next two are the month.
3 letters, then numbers
LLL YY MM #####
- Skip the 3 letters at the start.
- The next two digits are the year, then two digits for the month.
Example: GBB030708229
How long does a furnace last?
Most furnaces last 15 to 20 years. Yearly servicing, the local climate and how hard it works all move it within that range. Past 15 years, it is worth getting a replacement price before the unit fails, so you aren't forced into a rushed decision.
Furnaces made before 1992 were built before the federal 78% efficiency minimum. If yours is that old, a new 95% furnace could cut your heating fuel use by a quarter or more.
Questions
How do I find the age of my Nordyne furnace?
In a Nordyne-family serial number, the two digits after the first three letters are the year and the next two are the month. You'll find the serial number on the data plate. Take off the front lower panel (turn the power off first). The data plate is a metal or foil sticker on the inside of the door or on the side of the cabinet, next to the blower. The serial number is usually labelled "Serial No.", "S/N" or "Ser. No."
How long does a Nordyne furnace last?
Like most furnaces, a Nordyne typically lasts 15 to 20 years with regular servicing.
Related
How sure are these dates? Based on a single published source. Treat the date as an estimate and check the label for a printed date. How we test the decoder.
Keeping an older furnace going
- Furnace air filter: Change it every 1 to 3 months. Check the size printed on the old filter.
- Carbon monoxide detector plug in: Any gas furnace, and especially an older one, should have a CO alarm nearby.
- Smart thermostat: Cuts run time on any system, old or new.