Water heater
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United States of America Patent
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Aug 25, 2020
Grant Date -
Feb 7, 2019
app pub date -
Aug 4, 2017
filing date -
Aug 4, 2017
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A water heater system includes a primary heat exchanger including a tank and at least one flue, and a secondary heat exchanger including a core and a flue gas flow path. The water heater is operable in a heating mode in which a combustor produces hot flue gas and a water pump flows water through the core of the secondary heat exchanger and into the tank, and in a non-heating mode in which the combustor and the water pump are inoperative. The flue gas flows from the combustor through the at least one flue to heat the water in the tank and then through the flue gas flow path to heat water in the core before being exhausted.
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Family
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