Patent ID: 6944394
Filing Date: 2005-09-13
Classification: F24H

Abstract:
1. A fluid heat exchanger for use in a fluid heating system comprising: a rapidly heatable inside tube including a hot portion for generation heat in combination with an unheated cold portion for providing power to said hot portion; said hot portion being continuous through said rapidly heatable inside tube and having opposing ends connected to said cold portion, said rapidly heatable inside tube having at lest one portion with and axial curvature along the length of said hot portion; a hollow outside tube surrounding said cold portion and said hot portion of said rapidly heatable inside tube; a fluid passing between said rapidly heatable inside tube and said outside tube for circulation through said fluid heating system; wherein said rapidly heatable inside tube is rapidly heated by said hot portion so that said rapidly heatable inside tube is heated throughout its continuous length and said fluid is rapidly heated as it passes over said hot portion to a predetermined temperature for use in said fluid heating system.