4. Heating systems
  5. Air
  6. Flue heated

Fred J. Gary

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Heat recovery device for use in return air duct of forced air fu

Heating systems – Air – Flue heated
Patent

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Heat recovery device for use in return air duct of forced air fu

Stoves and furnaces – Heat accumulator structures
Patent

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Heat recovery device for use in return air duct of forced air fu

Heat exchange – Tubular structure – Projecting internal and external heat transfer means
Patent

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Profile ID: LFUS-PAI-P-191010

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