If anyone out there would be kind enough to explain how the fsd works on this boiler I would really appreciate it
. I can see no thermocouplers on it. On the burner is just a single electrode that's it. The boiler in question is the old conventional one not the system.
. I can see no thermocouplers on it. On the burner is just a single electrode that's it. The boiler in question is the old conventional one not the system.
