Central boiler.

Bought it when pellets were more reasonable.   It hasn’t been horribly unreliable as long you knew its quirks.  Wife and I suspect it has started weeping from the water box to the fire box.   Unless it’s an easy fix I won’t mess with it.  My biggest complaint is it’s another thing that takes time and with the price of pellets it ain’t worth it.   Cut the price of pellets back in half I’d be more enthusiastic.