Natural ventilation / Discussions

I have high ceilings and I will be adding an addition this summer with normal height ceilings and a new stairwell to the basement. Should I arrange for a ceiling fan in the older part with high ceilings or will it be redundant with HRV connected throughout? If it were me I'd want a ceiling fan in the older portion of t...

...natural ventilation techniques into the heating/cooling/ventilation planning for the whole house as an integrated system?  Some reading I have done has led me to understand that if you employ some natural ventilation techniques you may be able to downsize some of the heating/cooling/ventilation equipment and save on op...