I installed some cleanser into my part old/part new (including new combi) central heating system just before Christmas. Instructions say to leave for upto four weeks, running hot.
I am going to be unable to drain it off and replace with inhibitor for another few weeks and wondered if anyone knew if this would damage the system?
It might make a difference that the system has only been run hot for a couple of hours a day, since the property is empty.
Rob