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US 2025/0347441 A1Published application
Condensing boiler for use with non-condensing stacks
AssigneeAerco International, Inc.
InventorsKyle T Morgan, Hakan Bjornson, Corey Ditmars, Gerald A Fioriti, Iram Rahman, Adrian Voicu
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Abstract
A condensing boiler for use with a non-condensing stack, including a heat exchanger with a combination of higher efficiency heat exchanger tubes and lower efficiency heat exchanger tubes.
Claims26
A condensing boiler comprising:
- a heat exchanger configured to be fluidly coupled to burner, a hot water supply, and a cold water supply, the heat exchanger including,
- multiple lower efficiency heat exchanger tubes, and
- multiple higher efficiency heat exchanger tubes,
- wherein each of the lower efficiency heat exchanger tubes are encircled by at least three of the higher efficiency heat exchanger tubes.
1 more element
A method to vent a condensing boiler into a non-condensing stack comprising:
- providing a condensing boiler having a heat exchanger;
- passing combustion gas through a mixture of higher efficiency heat exchanger tubes and lower efficiency heat exchanger tubes in the heat exchanger, wherein each of the lower efficiency heat exchanger tubes are encircled by at least three of the higher efficiency heat exchanger tubes in the heat exchanger;
- and
- venting the combustion gases from the heat exchanger into the non-condensing stack.
1 more element
Dependencies are inferred from the claim text.