Portable pool heater

Details Portable pool heater Portable pool heater

1995-09-08

1997-03-04

Dority, Carroll B.

Stoves and furnaces

Liquid heater

Fluid fuel burner for other than top-accessible vessel

122356, 122 14, F24H 100

Patent

active

056069642

ABSTRACT:
A heater for liquids having a pump that receives the liquid to be heated includes a burner for producing heat output. A primary heating coil has an inlet for receiving the liquid to be heated from the pump and an outlet. The primary heating coil is located above the burner to receive heat output and a secondary heating coil having an inlet is positioned above the primary heating coil to receive burner heat output. The secondary heating coil receives heated liquid from the primary coil outlet for further heating to produce the final heated liquid at its outlet. A conduit recirculates heated liquid from said secondary heating coil back to the pump inlet to mix with the liquid applied to the inlet to raise the temperature of the liquid supplied to the primary heating coil.

REFERENCES:
patent: 2348610 (1944-05-01), Colby
patent: 4644904 (1987-02-01), Metz
patent: 5201307 (1993-03-01), Afshar
patent: 5347957 (1994-09-01), Sugahara

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