High efficiency water heater

Details High efficiency water heater High efficiency water heater

2007-03-16

2009-11-10

Wilson, Gregory A (Department: 3749)

Liquid heaters and vaporizers

Stand boiler

Fluid fuel burner

C126S367100, C126S368100

Reexamination Certificate

active

07614366

ABSTRACT:
An application for a method of heating water includes burning fuel to produce hot gases and heating a first mass of water with a first heat exchanger coupled to the hot gases. Heat remaining after the hot gases pass through the first heat exchanger is used by a second heat exchanger to heat a second mass of water. The first mass of water is partially isolated from the second mass of water and the first mass of water is contained substantially within the second mass of water. The second mass of water is colder than the first mass of water and, thereby, condenses more water vapor out of the hot gases.

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