we have a weil-mclain series 2 boiler. the boiler cycles between domestic water and space heating when the lower level calls for heat. or if it gets 20 degress below zero. We don't heat the lower level except for guests, however it is a finished walk out basement and stays around 64 to 68 degrees.

Asked by Sherry on 08/07/2008 1  Answer

ManualsOnline posted an answer 15 years, 9 months ago

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