In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Old style automag zone overheating
Hope someone can help me out. We have an old style automag system installed in the early 70's. BTW I'm not a technical person. There are two zones. One for the 1st floor the other for the 2nd floor. The 1st floor works fine. The 2nd floor has 4 thermostats. The problem is that if one room calls for heat all the rooms will heat up and keep heating up independent of what the thermostat is set at. I checked the magnetism on all 4 zone valves and the only one that is magnetized is the room that is calling for heat. Why do the other rooms heat up even though they are not magnetized? Also the problem is intermittent! Thanks for any help.