nuthcuntrynut wrote:i had to turn temp down, dump zone was tripping, i need to get busy on that domestic water coil, and tie in a dedicated power circuit to the boiler and vent. Bet the coal usage will triple after dhw is up and operating, but for now it cycles a few times a night as zones come on, but idles all day. Temp plummets when a zone comes on, i may need a buffer tank, drops 30 degrees in less than a minute . takes about twenty minutes to recover or more.
This model boiler has a very small amount of thermal mass compared to most coal boilers. There are pros and cons to this, but the frequent dump zone activation and rapid temperature drop upon load are cons, in my opinion at least. Learn to live with it or add a buffer tank. "Boiler Buddy" is one that comes to mind.