The "runs constantly " was in response to"the pump stays on just long enough to replace cold water in the system with hot water"
When it is heating - it runs constantly.
baseboard heat
Sep 19, 2010
26 Replies
I certainly said nothing of the kind.
I've never seen one that didn't cut out when (if) the low-limit was reached.
wrote
It did not cut out on my old boiler. If the burner did not go on, the circulator would go forever.
Mine didn't so the pipes froze. :-(
This one is a veissmann - and the pump runs whenever heat is called for, irregardless of the tank temperature.
When circulating they take a LOT longer to freeze.
It wasn't installed correctly. That's what the low-limit is for.
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