Definitions: W - HVAC

winter degree day

A winter degree day is a measure of the amount of annual heating required in a location. One winter degree day represents one degree below the norm for a 24 hour period. The lower the temperature and longer the cold season, the higher value of winter degree day a location will have.


References - winter degree day

See the following for additional winter degree day information:



Service Professionals that can help with winter degree day issues



Common projects involving winter degree day



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