I apologize for the chill. In the summer we open all the vents upstairs and close all the main level and basement-reversing in winter. I had not been here since the weather change and did not think to tell the caretaker. All the vents are now changed. I also forgot to tell you that there is a space heater in the closet for the basement. The space heater is necessary when you are on air mattresses. I will make note of that in the guest information book.