the fluid to heat more quickly as it passes through the capillaries u2014 increasing the overall efficacy of the heat exchanger in a preferred embodiment the combined flow of the capillaries of the heat exchanging element must be able to accommodate an equal or greater flow then the downward and upward flow pipe s this greater flow increases the time the fluid spends in the heat exchanger in a preferred embodiment the heat exchanging element may be comprised from a titanium clad tube sheet wherein the tube sheet may be formed from a high temperature nickel based alloy or ferritic steel in this way the heat exchanger is able to operate efficiently under high temperature pressure conditions moreover the thickness of the titantium may vary in accordance with specific temperature and or pressure conditions under which the heat exchange element operates it is understood that there are other types of heat exchanging elements known the art which may also be used in the present invention such as parallel heat exchangers and or reverse flow heat exchangers in alternative embodiments any of these types of exchangers may be utilized a primary consideration in designing the heat exchanging element will be to ensure its efficient.