Gas furnace with heat exchanger
Number of patents in Portfolio can not be more than 2000
United States of America
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Jan 14, 2025
Grant Date -
Jun 29, 2023
app pub date -
Nov 23, 2022
filing date -
Nov 23, 2022
priority date (Note) -
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Abstract
A furnace assembly for use with a gas fuel that includes a cabinet and a burner located in the cabinet that is operable to ignite the gas fuel. The furnace also includes a heat exchanger assembly in communication with the burner and open to receiving the ignited gas fuel, the heat exchanger assembly including tubes. Each tube includes a first section with an inlet, a horizontal section having a first internal diameter, and a vertical section. Each tube also includes a second section extending from the first section and having a second internal diameter less than the first internal dimeter. The second section also includes a serpentine flow path up and down in the vertical direction and an outlet. The gas fuel entering a tube stays in the tube until flowing out of the tube. The furnace also includes a blower operable to move air through the cabinet and over the heat exchanger assembly.
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