In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
PSI/Boiler on the 6th floor?
Since the top floor is the 6th floor is it a good Idea to put at least 12psi on the system? Would not want the pump to suction to ever go beyond 0psi to a negative number. Any help would be appreciated. Primary secondary set up with boilers set at aprox. 20 psi.