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OwnerClaude Lesage, Jean-Claude Lesageinventors
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A hot water heater, particularly but not exclusively for domestic use, is herein described and having removably secured thereto a modular heat exchanger or an external water heater to heat the water in a separate tank portion. The two are easily separable from one another for service, repair or interchange. The air-to-air heat exchanger extracts heat loss from the central flue of a gas fired water heater to provide a source of heat for the building in which the hot water heater is installed. The external water heater is provided with a gas-fired burner for heating water from the tank circulated in a heat exchanger to transfer heat from a fluid heated by the burner and circulated in the heat exchanger to transfer the heat to water circulated from the water tank.
A gas-fired water heater with an integrated modular air-to-air heat exchange apparatus, said water heater having an insulated tank for storing water to be heated, a combustion chamber under a lower portion with said tank and having a gas burner therein, a flue passageway in said tank and having an outlet end exiting a top wall of said tank, said air-to-air heat exchanger connected to said outlet end and constructed to communicate hot flue gases exiting said outlet end with heat conductive elements in contact with ambient air whereby to extract heat from said hot flue gases and release said heat to said ambient air.
A water heater comprised of a water tank for the containment of heated water and an external modular water heater detachably connected to said tank to heat water therein, said tank having a water inlet and a hot water outlet in a top portion of said tank, a water supply connecting means and a heated water return connecting means in a top portion of said water tank, said water supply connecting means having a water supply conduit extending to a predetermined location in said water tank, said heated water return connecting means having a hot water return conduit, said modular water heater having a gas-fired burner for heating a fluid circulated in a heat exchanger for heat transfer communication with cooler water circulating between said water supply connecting means and said heated water return connecting means.
A water heater comprised of a water tank for the containment of heated water and an external modular water heater detachably connected to said tank to heat water therein.
Dependencies are inferred from the claim text.