Hi, I live in an old Tudor style home in NJ. Above my front door is a peak roof with a gable vent and a knob a few feet below the vent. The knob doesn't turn.. Should it.? Should I be able to close the vent in the winter as my foyer becomes ice cold? I tried to upload a picture, but was not successful. Regards, Joe,, and Thanks in advance to anyone who responds.
Here is link to pictures : http://www.pinterest.com/pin/390546598911307140/