Water heater flue system
AssigneeAOS Holding Company
InventorsDennis R. Hughes, Marc W. Akkala, Kevin M. Field, Robert F. Poehlman
Life of this patent
Estimating the term…
Abstract
A water heater includes a water tank, a combustion chamber below the tank and communicating with the flue tube, and a flue system. The flue system includes a flue tube, and a cruciform fin metallurgically bonded to the flue tube wall and dividing the flue tube into four flue chambers extending substantially parallel to the longitudinal axis of the flue tube. The flue system also includes a removable baffle hanging in each flue chamber. The baffles include adjustable turbulation surfaces to control the quality of combustion in the water heater.
Claims45
A water heater comprising:
- a tank for holding water;
- a combustion chamber;
- a flue tube having a longitudinal axis and extending through said tank along said longitudinal axis and communicating with said combustion chamber, said flue tube having an inner surface;
- a first fin positioned within said flue tube, said fin having first and second edges that are both at least partially metallurgically bonded to said inner surface to divide said flue tube into first and second flue chambers extending substantially parallel to said longitudinal axis;
- and
- first and second removable baffles positioned within said first and second flue chambers, respectively, said first and second baffles each having at least one turbulation surface.
A water heater comprising:
- a tank for holding water;
- a combustion chamber;
- a flue tube extending through said tank and communicating with said combustion chamber, said flue tube having an inner surface and a longitudinal axis;
- a fin structure positioned within said flue tube, said fin structure including four fin portions metallurgically bonded to said inner surface to substantially divide said flue tube into four flue chambers extending substantially parallel to said longitudinal axis;
- and
- first, second, third, and fourth baffles, each of said baffles including at least one turbulation surface, and each of said baffles being removably positioned within a respective one of said four flue chambers.
A water heater comprising:
- a tank for holding water;
- a combustion chamber;
- a flue tube extending through said tank and communicating with said combustion chamber, said flue tube having an inner surface and a longitudinal axis;
- a fin structure positioned within said flue tube, said fin structure including a pair of V-shaped fin portions at least one of said V-shaped fins having first and second edges at least partially metallurgically bonded to said inner surface to substantially divide said flue tube into a plurality of flue chambers extending substantially parallel to said longitudinal axis;
- and
- first and second removable baffles each positioned within one of said flue chambers and each including at least one turbulation surface.
Dependencies are inferred from the claim text.