kwieg1
New Member
I have a Smith Cast Iron Boiler that supplies 6 zones of hydronic baseboard. As iot is piped now, it is a 2 pipe direct return system with boiler pump and 6 white rogers zone valves. The zone valves are starting to go bad and getting annoying to replace and want to replace the with Circulators + switching relay. Do you see any problems with keeping boiler pump and adding 15-58 grundfos brute pumps instead of the Zone valves?