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How old is my Intertherm?

Find the age of your Intertherm equipment using its serial number or a photo of the rating label. Supported date codes vary by product family and era; a result may show more than one possible year.

Age estimates available for matching formats

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  1. Find the rating label. Where to look on each kind of appliance.
  2. Take a photo of the whole label, or note the model and serial numbers.
  3. Use the lookup below. It is free, and no account is needed. A date is shown only when the available evidence supports it.

Brand: Intertherm

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Search Intertherm recall notices

Intertherm appliances

How to find the age, the serial number, typical life and parts for each:

The range is sized for factory-built homes and includes electric, gas and oil furnaces (the classic mobile-home furnace), split air conditioners and heat pumps, ductless mini-splits, packaged units, and coils and accessories.

About Intertherm

Intertherm is a heating and cooling brand built mainly for manufactured, modular and other factory-built homes. It is made by Nordyne in O'Fallon, Missouri, a business long known as Nortek Global HVAC, which Rheem bought in 2025. It is best known for the compact gas and electric furnaces found in mobile and manufactured homes.

Nordyne (formerly Nortek Global HVAC), now part of Rheem

Owned by
Rheem (through Nordyne, formerly Nortek Global HVAC; acquired 2025)
Headquarters
O'Fallon, Missouri, USA
Founded
1919
Product lines
RightFit

Sister brands: Miller, Nordyne, Maytag (HVAC), Frigidaire (HVAC), Gibson (HVAC), Rheem, Ruud.

Official site Find your model and serial Official parts

Intertherm history

  • 1919: The business behind Intertherm and Nordyne was founded in St. Louis, Missouri as the International Oil Heating Company.
  • 1935: The company made what it describes as the first oil heater for manufactured housing.
  • 1971: It introduced what it calls the first sealed-combustion furnaces.
  • 2021: Nortek, then the parent company, was acquired by Madison Industries.
  • 2022: The HVAC business relaunched as Nortek Global HVAC (NGH).
  • 2025: Rheem acquired Nortek Global HVAC, which now operates under the Nordyne name.

Intertherm recalls

Every Intertherm check is compared with Health Canada, U.S. CPSC and U.S. NHTSA recall notices.

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