to the dispense patterns learned by self learning timer relay controller 610 again self learning timer relay controller 610 recognizes low non use periods and the duration of same therefore self learning timer relay controller 610 will maintain recirculation pump 150 activated for a time sufficient and in accordance with the recognized low non used periods and their duration therefore one skilled in the art can envision that system 600 automatically responds to peak use periods and non peak use periods as learned over a period of time likewise the periods of peak use and non peak use may change over longer periods of time e g seasonally and self learning timer relay controller 610 will accommodate such seasonal changes fig7 shows resulting temperatures using various pump on pump times according to the present disclosure the target temperature of the embodiments shown in fig7 was an assumed maximum target temperature of 42 u00b0 f in the table shown in fig7 test run 1 reflects the increase in temperature above the maximum often set by a product supplier without any recirculation via the recirculation pump over a period of time of 30 min test runs 2 10 show that using various pump on and pump off times the target maximum temperature of 42 u00b0 f can be attained using the intermittent recirculation systems and methods according to the present disclosure more particularly assuming a maximum product temperature that is often set by a product supplier of 41 u00b0 f test runs 3 10 attain this target temperature further assuming a maximum product temperature set by product supplier.