I Have an Older Model Furnace, Where Do I Find a Current Model Number?

General FAQ

Answer

Review the "Obsolete Models" link on the Williams website, which cross-references older model numbers to their newer equivalents.

Other Brand Names

Williams manufactured furnaces for several other brands including:

  • Dayton
  • Dearborn
  • Kenmore
  • Montgomery Wards
  • Sears
  • Grainger
  • Suburban

If your unit bears one of these brand names, it may actually be a Williams furnace, and this resource can help identify the current corresponding model.

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