Recent content by cypress53562

Well I have had two boiler companies in and neither has been able to figure it out. I think it might be electronic since I can manipulate the noise at the thermostat, when I call for heat it starts up and as soon as I switch the heat off it stops. Could that be possible -- Erie Zone valve with...

I have 50 year old 24 unit building with force hot water heating. I have one unit (farthest from burnam boiler) that has a high pitched sound running through the pipes when the unit calls for heat. The zone valve is fine. I have tried reducing the water going into the pipes by partially closing...