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.
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13 years ago
baseboard heat
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13 years ago
I certainly said nothing of the kind.
I've never seen one that didn't cut out when (if) the low-limit was reached.
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13 years ago
wrote
It did not cut out on my old boiler. If the burner did not go on, the circulator would go forever.
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13 years ago
Mine didn't so the pipes froze. :-(
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13 years ago
This one is a veissmann - and the pump runs whenever heat is called for, irregardless of the tank temperature.
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13 years ago
When circulating they take a LOT longer to freeze.
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13 years ago
It wasn't installed correctly. That's what the low-limit is for.