a3546504_culator_Comfort_Valve_Problems__PRICE_BASED_ENGINEERING
[0] LIFECYCLE [REDYTEMP EFFICIENCY-BASED] Temp based "cyclic-pumping", makes for longer life of both circulator and water heater [PRICE-BASED ENGINEERING] 
pumps running continuously, inefficient HWL siphoning makes for shorter life span of both pump and hot water heater
Hot Water Circulator Comfort Valve Problems
PRICE-BASED ENGINEERING