Yes, and another big saver would be certain types of heat recovery system[1] that will allow you to recover the heat added to the supply air from the exhaust ai

Yes, and another big saver would be certain types of heat recovery system[1] that will allow you to recover the heat added to the supply air from the exhaust air without mixing (and thereby polluting) the air streams. [1] https://en.wikipedia.org/wiki/Heat_recovery_ventilation#:~:text=Heat%20recovery%20is%20a%20method,thus%20energy%20costs%20)%20of%20buildings.&text=Heat%20recovery%20systems%20typically%20recover,the%20energy%20efficiency%20of%20buildings%20 https://en.wikipedia.org/wiki/Heat_recovery_ventilation#:~:t....