A home needs an air change in 4-5 hours when occupied to purge indoor pollutants and renew oxygen. When the wind blows and its cold outside, expect an increase in natural infiltration. When the wind is calm and temps outside are warmer, supplemental fres air ventilation is usually required.
Therefore very little fresh air is needed during cold weather. Investigating the rise of the inside air dew point verses the outside dew point will indicate the amount of natural fresh entering the home. Currently your outdoor dew point is 24 ^F. What is you inside temp/%RH/dew point? If your current indoor dew point is 43^F and you have 2 occupants, you are getting 70 cfm of fresh air moving through your home. This may be enough fresh air infiltration to indicate no need for more fresh air during this type of weather.
Two occpants add 1 lb. of moisture per hour.
Give us your inside air conditions to help determine the amount of fresh air naturally entering your home.
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"