Most well built homes get enough fresh air on the colder, windy days from the stack effect and wind pressure. But what about the calm winds and moderate temperatures. Most experts suggest that an air change in 4-5 hours is adequate fresh air which is common during colder windy days. During moderate weather, an air change 10-24 hours is common. The focus should be on getting adequate fresh air when the home is occupied regardless what the weather is. This is more than a damper on a make-up air duct.
Also keep the home comfortable, dry, and the air clean. A whole house ventilating dehumidifier is a good device for green grass climates. Limit fresh air ventilation to the time of occupancy and during the mild times of the year.
This makes sense for indoor air quality, operating cost, and comfort.
This is a no brainer.
Regards TB
Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
Use +Merv 10 air filter. -Don't forget the "Golden Rule"